The pedigree below shows several generations of a family in which cystic fibrosis runs. A healthy phenotype is dominant (C), and cystic fibrosis is recessive (c). Shaded individuals have cystic fibrosis. Symbols with question marks have unknown genotypes and phenotypes. Individual 3 must have a genotype of:

A. CC
B. C
C. cc
D. None of the above

Answer:

The only type of human cell that is never replaced is Nerve cells.

Hope this helps you. Do mark me as brainliest.

The only type of human cell that is never replaced is nerve cell.

Neurons are in charge of receiving sensory input from the outside world, sending action potentials to our muscles, and transforming and relaying electrical signals at every step in the process.

The nerve cell is the basic unit of communication in the nervous system (neuron). The cell body, a major branching fiber (axon), and numerous smaller branching fibers comprise each nerve cell (dendrites).

They do not divide in any way. There are only two exceptions to this rule: only two specific areas of the brain can produce new neurons. However, for the most part, the brain is unable to replenish dead neurons.

Thus, nerve cells are the ones that never gets replaced after getting injured.

For more details regarding neurons, visit:

https://brainly.com/question/24217914

#SPJ2

Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.

All the gametes of the second parent are not necessarily the same. Gametes, also known as sex cells, are reproductive cells that are produced through a process called meiosis. During meiosis, the DNA in the parent cell is randomly shuffled, creating genetic diversity among the resulting gametes. This diversity allows for the potential for genetic recombination and variation in offspring.

In a typical sexual reproduction, each parent contributes half of their genetic material to the offspring through their gametes. However, the gametes of each parent are not identical, and the genetic information they carry may be different. This is why offspring can inherit different traits from their parents, even if they are from the same species.

You can learn more about gametes at

https://brainly.com/question/7648924

#SPJ4

Answer:

The cell (from Latin cella, meaning "small room"[1]) is the basic structural, functional, and biological unit of all known organisms. Cells are the smallest units of life, and hence are often referred to as the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.Cells consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids.[2] Most plant and animal cells are only visible under a light microscope, with dimensions between 1 and 100 micrometres.[3] Electron microscopy gives a much higher resolution showing greatly detailed cell structure. Organisms can be classified as unicellular (consisting of a single cell such as bacteria) or multicellular (including plants and animals).[4] Most unicellular organisms are classed as microorganisms.

The number of cells in plants and animals varies from species to species; it has been estimated that humans contain somewhere around 40 trillion (4×1013) cells.[a][5] The human brain accounts for around 80 billion of these cells.[6]

Cells were discovered by Robert Hooke in 1665, who named them for their resemblance to cells inhabited by Christian monks in a monastery.[7][8] Cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and function in all living organisms, and that all cells come from pre-existing cells.[9] Cells emerged on Earth at least 3.5 billion years ago.[10][11][12]

After proposing a null hypothesis of a simple monohybrid cross, The chi-square value for this experiment is 60.

The chi-square value is a statistical measure used to determine if there is a significant difference between observed and expected values. In this case, the expected ratio of red to black offspring in a monohybrid cross is 3:1. So, the expected number of red offspring is (3/4) x 1080 = 810, and the expected number of black offspring is (1/4) x 1080 = 270. The observed number of black offspring is 240.

To calculate the chi-square value, you use the formula:

Substituting the values, we get (240-270)²/270 + (840-810)²/810 = 1.33. The degrees of freedom for this experiment is 1. With a significance level of 0.05, the critical value of the chi-square is 3.84. Since 1.33 < 3.84, we fail to reject the null hypothesis and conclude that the observed and expected ratios are not significantly different.

Learn more about Dominant allele:

https://brainly.com/question/15064465

#SPJ4

The parameters analyzed in this lab would use to assess the purity of your colonies are a. the gram stain b. colonies should be the same size c.arrangement should be the same

If colonies were pure, several parameters can be analyzed in the lab, one method used to assess the purity of colonies is the Gram stain, which helps to classify bacteria based on their cell wall composition. Pure colonies should exhibit the same Gram staining characteristics. Another parameter to consider is the size of the colonies, pure colonies should display uniform size, indicating that they are composed of a single type of organism. Additionally, the arrangement of cells within the colony should also be consistent, further supporting the notion that the colony is pure.

However, even when these parameters are consistent, it is important to recognize that there is still a possibility of contamination or mixed colonies. Therefore, additional tests and observations might be necessary to confirm the purity of the colonies with a higher degree of certainty. In summary, although the Gram stain, colony size, and arrangement are useful parameters to assess the purity of colonies, other tests may be needed to confirm their purity completely.

Learn more about gram stain at:

https://brainly.com/question/30625957

#SPJ11

Answer:

D endocytosis

Explanation:

I just found it it's called phagocytosis which is a process of endocytosis

All matter is made from elements, so there must be thousands of different elements, which is false. As all matter is made from elements, there are only 118 known to exist.

Atoms are the basic building blocks of matter, and they are composed of protons, neutrons, and electrons. The number of protons in the nucleus of an atom is what defines the element. For example, all atoms with six protons in their nucleus are carbon atoms, and all atoms with eight protons in their nucleus are oxygen atoms. Currently, there are 118 elements known to exist, and they are arranged on the periodic table in order of their atomic number.

Learn more about the elements and atoms here.

https://brainly.com/question/30028447

#SPJ1

a. True. Galactorrhea is a condition characterized by the spontaneous production of breast milk in individuals who are not pregnant or breastfeeding. It is often caused by an excess of prolactin, a hormone that stimulates milk production.

Prolactin is normally produced by the pituitary gland in response to various stimuli, such as nursing or pregnancy. However, certain factors, such as hormonal imbalances, medication use, thyroid dysfunction, or tumors in the pituitary gland, can lead to elevated levels of prolactin, resulting in galactorrhea. The condition can affect both men and women and may be accompanied by other symptoms such as irregular menstruation, infertility, or decreased libido. Treatment options depend on the underlying cause and may include medications or surgical intervention.

Learn more about pituitary gland here:

https://brainly.com/question/30289440

#SPJ11

Answer:

ffhutfkaiug. sahim sail sahl

Answer:

Expand in the water

Explanation:

Molecules tend to move from places of high concentration to low concentration. When the cell is placed in the solution, it will expand in the water.

I hoped I helped somewhat-

A cell contains 20% solute. If it is placed in a solution with 90% water, the cell will expand in water.

Cell is defined as the fundamental structural, biological, and functional unit of all recognized living things. The smallest unit of life that is capable of autonomous replication are cells, which are frequently referred to as the "building blocks of life." The cell has a long and fascinating history that began with Robert Hooke's initial discovery in 1665 and ultimately led to many of today's scientific breakthroughs.

If a cell is immersed in a hypertonic solution, water will leak out of the cell, causing it to contract. Since there is no net water movement in an isotonic environment, the cell's size remains constant. From areas of high concentration to those of low concentration, molecules frequently migrate. The cell will enlarge in the solution when submerged in water.

Thus, a cell contains 20% solute. If it is placed in a solution with 90% water, the cell will expand in water.

To learn more about cell, refer to the link below:

https://brainly.com/question/3142913

#SPJ2

Answer:

IV, VI, III, I

Explanation:

Translation is the process of synthesis of protein from with the help of messenger RNA (mRNA).

The process of translation include initiation, elongation and termination.

So, the correct chronological order is IV, VI, III, I.

Answer:

Proton

Explanation:

Neutron are neutral, ion I am not sure but are not positive, and electron are -.

Answer: Proton

Explanation:

In an atom there exist three types of sub atomic particles

1) Electrons

2) Neutrons

3) Protons

so we know that electrons are negatively charged particles which stays in a finite orbit as per their energy level

Protons are positively charged particles which remains inside the nucleus and they are tightly bound inside it

Neutrons are neutral sub atomic particles which do not have any charge in it.

So we have correct answer as

D) Proton

Answer:Nitrous oxide – oxygen sedation will always begin and end with the patient receiving 100% oxygen. Then, slowly allowed to breathe. A flow rate of 5–6 L/min generally is acceptable to most patients.

Explanation:

The administration of nitrous oxide and oxygen always begins and ends with the patient's consent and appropriate monitoring.

The administration of nitrous oxide and oxygen (N₂O-O₂) is a common practice in various medical settings, such as dental procedures or labor analgesia. However, the process should always begin and end with the patient's consent and appropriate monitoring.

Before starting the administration, healthcare professionals must obtain informed consent from the patient, explaining the procedure, potential risks, and benefits. This ensures that the patient is aware and agrees to receive the nitrous oxide and oxygen mixture.

During the administration, continuous monitoring of the patient's vital signs, including oxygen saturation, heart rate, and blood pressure, is necessary. This allows healthcare providers to assess the patient's response to the N₂O-O₂ and ensure their safety throughout the procedure.

At the end of the administration, the healthcare provider should discontinue the nitrous oxide and oxygen and ensure that the patient has fully recovered from its effects. This includes observing the patient for any lingering side effects or complications and providing appropriate post-procedure care.

To know more about nitrous oxide refer here

https://brainly.com/question/17588284

#SPJ11

Bats typically exhibit sigmoid or S-shaped growth curves, which are characteristic of many populations of living organisms.

In the early stages of growth, the bat population is small and has a slow rate of increase. As the population grows, it enters a period of rapid growth, where the rate of increase is high.

Eventually, the growth rate begins to slow down as the population approaches its carrying capacity, which is the maximum number of individuals that can be sustained by the available resources. At this point, the population stabilizes at its carrying capacity, and growth stops or becomes very slow.

This pattern of growth is common in many animal populations and is influenced by factors such as resource availability, predation, disease, and other environmental factors

Learn more about growth patterns at: https://brainly.com/question/14310799

#SPJ1

The nutrient that serves in the regulation and maintenance of the human body by aiding in fluid balance, cell synthesis and visual processes is protein.

A protein is a fundamental biomolecule composed of amino acids linked by different types of peptide bonds.

Protein represents a fundamental macronutrient in a similar mode to carbohydrates and lipids (fats).

In conclusion, proteins serve in the regulation and maintenance of the human body by aiding in fluid balance, cell synthesis and visual processes.

Learn more about proteins here:

https://brainly.com/question/10058019

#SPJ1

According to the question, if a plant fixes X amount of energy, the second trophic level will have access to 10% of X, or 0.1*X, and the third trophic level will have 10% of 0.1*X, or 0.01*X.

Approximately energy will be available to the third trophic level will be 0.01*X.

What phases of an ecosystem's energy flow are there?

The transmission of energy from one organism to another, starting with the autotrophs and rising up the food chain as animals are consumed by one another, is referred to as energy flow. Pyramids of food and energy are another approach to show this kind of chain or just to show the trophic levels.

To know more about ecosystem's energy flow, click here- brainly.com/question/2660876

#SPJ4

Answer:

A control in an experiment is a replica used to confirm that the results or changes in the dependent variable/s are caused by the independent variable values or treatments. There are different kinds of controls according to the experiment, for example,  no treatment can be applied, or for example in laboratory experiments, there are controls to check that the reactives function properly, making a replica with them but without the sample that is being measured.

Explanation:

Law of segregation: like a coin flip. It is a separation of those two alleles. Random distribution.  This separation is analogous to a coin flip, where the two alleles for a trait are randomly distributed into the gametes.

The law of segregation states that during the formation of gametes (sex cells), the paired alleles for a trait segregate (separate) from each other, so that each gamete receives only one allele for the trait.  This random distribution of alleles ensures genetic diversity and contributes to the variation observed in offspring. When fertilization occurs, the combination of gametes from each parent leads to offspring with unique combinations of alleles. This genetic diversity is essential for adaptation, evolution, and the ability of populations to respond to changing environments. The law of segregation, along with other genetic processes, contributes to the variation observed in offspring and the overall genetic diversity within a species.

To learn more about, alleles, click here,https://brainly.com/question/25970081

#SPJ11

The axial skeleton contains the skull, true and false ribs, and vertebrae. Option 1 and 4.

The axial skeleton is a portion of the skeleton that consists of the bones of the head, the neck, the chest, and the back.

It is in contrast to the appendicular skeleton which consists of the bones of the upper and lower extreme of the body, including the bones of the shoulder and the pelvis.

The axial skeleton consists of 80 bones altogether, including the bones of the ears and the vertebral column.

More on the axial skeleton can be found here: https://brainly.com/question/4540048

#SPJ1

The types of additional evidence created when a body is disembered are :

When a body is disembered in a crime it provides the evidence that there was a physical assault unleashed on the victim by the offender and it also prove that dangerous weapons such as knives and axes or guns where used to carry out the crime.

Hence we can conclude that The types of additional evidence created when a body is disembered are : The proof of Physical assualt  and The proof of the use of dangerous weapons.

Learn more about evidences in a crime : https://brainly.com/question/5590175

#SPJ1

Answer:

See the answer below

Explanation:

It is important that the RNA nucleotide sequence be completely determined by the DNA nucleotide sequence because the RNA is a stop-gap/intermediate molecule for the transfer of genetic information.

The RNA only acts as a messenger between the DNA and the protein of an organism. DNA cannot directly be translated to protein but requires an intermediate storage molecule which has to preserve the original information as genetic codes and later translate these codes into their respective proteins during the process of synthesizing proteins.

It is critical that the RNA nucleotide series be absolutely decided through the DNA nucleotide series due to the fact the RNA is a stop-gap/intermediate molecule for the switch of genetic facts.

The RNA best acts as a messenger between the DNA and the protein of an organism. DNA can't at once be translated to protein however calls for an intermediate garage molecule which has to keep the authentic facts as genetic codes and later translate those codes into their respective proteins at some stage in the system of synthesizing protein.

RNA sequencing (RNA-Seq) is an effective approach to observe the transcriptome of an organism at a given moment. As its call suggests, RNA-Seq is sequencing the RNA molecules from the sample.

Hence concluded that it matters that the RNA sequence of nucleotides is completely determined by the DNA sequence of nucleotides.

To know more about RNA refer to the link :

https://brainly.com/question/24885193

Planting perennial vegetables together in a specific place in the garden allows for efficient space utilization, facilitates crop rotation, promotes companion planting, and simplifies maintenance and harvesting. This approach maximizes productivity, supports healthy plant growth, and enhances overall garden management.

It is recommended to plant perennial vegetables together in a specific place in the garden for several reasons.

1. Efficient use of space: Perennial vegetables are plants that live for multiple years, as opposed to annual vegetables that need to be replanted each year. By planting perennial vegetables together, you can optimize space in your garden. Since perennial vegetables continue to produce year after year, you can maximize the productivity of your garden beds.

2. Crop rotation: Planting perennial vegetables in a specific place allows for easier crop rotation. Crop rotation involves changing the location of crops each year to minimize the buildup of pests and diseases in the soil. By designating a specific area for perennial vegetables, you can rotate other crops around them without disturbing the established perennial plants.

3. Companion planting: Certain perennial vegetables have beneficial relationships with each other when planted together. For example, planting asparagus and rhubarb together can provide mutual benefits by enhancing soil fertility and deterring pests. By grouping compatible perennial vegetables together, you can create a symbiotic ecosystem that supports the growth and health of the plants.

4. Maintenance and harvesting convenience: When perennial vegetables are planted together, it becomes easier to manage and maintain them. They require similar care and maintenance routines, such as watering and fertilizing. Additionally, harvesting becomes more convenient when the vegetables are in close proximity to each other, saving time and effort.

Learn more about Planting perennial vegetables here:-

https://brainly.com/question/15272765

#SPJ11

The two types of cells found in the nervous system are glial cells and neurons.

This refers to a complex network of nerves and cells that transmit messages to and from the brain and spinal cord to various parts of the body. The proper functioning of these nerves ensures that each organ system, such as the cardiovascular, gastrointestinal, and immune systems, can properly with one another.

The nervous system is made up of the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is made up of the brain and spinal cord, while  the PNS is made up of the somatic and autonomic nervous systems

What are neurons?

This refers to the actual nerve cell that sends impulses and it serves as the structural unit of the nervous system. it is also known as the conducting cell.

This refers to the cell that supports the neuron's roles physically and metabolically.

The network of nerve cells and fibers which send nerve impulses across the body parts is referred system.

Learn more about the nervous system on

https://brainly.com/question/29355295

#SPJ1

Answer:

himalayas mountains

Explanation:

I think