Which type of star cluster forms from tightly packed groups of older stars?​

In people with sickle-cell disease, red blood cells break down, clump, and clog blood vessels. These symptoms clogged blood vessels and broken cells accumulate in the spleen.

This leads to a suite of symptoms such as physical weakness, heart failure, pain, and brain damage. Such a suite of symptoms can be explained by the pleiotropic effects of the sickle-cell allele. Sickle cell disease is a genetic disorder caused by a change in the hemoglobin gene, it causes the red blood cells to become Sickle cell disease shaped and rigid, this shape causes them to clump and block the blood cells. The pleiotropic effects of the Sickle cell disease refer to the fact that a single genetic change can have multiple effects on an organism's phenotype, in this case, the genetic change causes problems in the shape of the red blood cells, which leads to multiple symptoms.

Learn more about Sickle cell disease here:

https://brainly.com/question/20393986

#SPJ4

The complete Question is :

In people with sickle cell disease, red blood cells break down, clump, and clog the blood vessels. The blood vessels and the broken cells accumulate in the spleen. Among other things this leads to physical weakness, heart failure, joint pain, and brain damage. Such a suite of symptoms can be explained by ____.

Answer:

The most striking similarity between bacteria and plants is the universality of the genetic code. Genes in DNA are like coded recipes, in which each triplet of letters specifies a particular amino acid. ... With a few exceptions, all known organisms use the same 20 amino acids to form proteins.

Answer:

catabolismo.

Explicación:

El tipo de acción metabólica que genera la glucólisis y la respiración celular se llama catabolismo porque en ambos procesos se descomponen las moléculas lo cual es una acción catabólica. El catabolismo es una forma de metabolismo que descompone moléculas más grandes en unidades más pequeñas que son utilizadas por la célula para liberar energía o utilizadas en otras reacciones anabólicas significa la síntesis de moléculas complejas en organismos a partir de otras más simples.

The process by which a new plant grows from parts of the parent plant is known as vegetative propagation, which consists of the sowing of an asexual part, like a branch.

The pyramid of energy is the graphical representation of the energy found within the trophic levels of an ecosystem. Therefore, between the alternatives the one that talks about that is "how much energy is available to the next "feeder" in a food web", since the energy needs are related to the ecosystem needs, and the pyramid shows the flows of energy indicanting what is available to the next trophic level from the energy of a previous level.

Answer:

- Bacteria cannot remove intronic sequence from a gene, so if the gene for factor VIII were transcribed, it would translate to a nonfunctional protein.  

- The bacteria will not recognize the eukaryotic promoter to transcribe the gene.

Genome engineering steps:

I. Isolate by PCR the mature mRNA of the target factor VIII gene

II. Synthesize a complementary DNA (cDNA) for this mRNA by using a reverse transcriptase enzyme

III. Insertion of the cDNA into a plasmid vector

IV. Expression of the protein in the host bacterial cell through transformation

Explanation:

Bacteria lack the spliceosome (ie., the eukaryotic machinery required to remove introns from the primary mRNA), because bacterial genes do not have introns. Moreover, eukaryotic organisms require several proteins that bind to the promoter sequence and subsequently recruit the RNA polymerase to initiate this process. In bacteria, transcription is controlled by proteins that bind to cis-acting sequences which regulate the transcription of adjacent genes. In contrast to bacteria, eukaryotic genes have many classes of promoter and enhancer elements.

Genome engineering technologies can be used to produce bacteria expressing human proteins derived from synthetically introduced human genes (see steps above). For example, recombinant bacteria expressing the human insulin gene have already been designed by using E. coli as cell factories.

Answer:

nuclear waste

Explanation:

Answer:

Jesus made every one evalution is false

When Charles Darwin introduced the theory of evolution through natural selection 158 years ago, the scientists of the day argued over it fiercely, but the massing evidence from paleontology, genetics, zoology, molecular biology and other fields gradually established evolution's truth beyond reasonable doubt. Today that battle has been won everywhere—except in the public imagination. Embarrassingly, in the 21st century, in the most scientifically advanced nation the world has ever known, creationists can still persuade politicians, judges and ordinary citizens that evolution is a flawed, poorly supported fantasy. They lobby for creationist ideas such as “intelligent design” to be taught as alternatives to evolution in science classrooms. When this article first went to press in 2002, the Ohio Board of Education was debating whether to mandate such a change. Prominent antievolutionists of the day, such as Philip E. Johnson, a law professor at the University of California, Berkeley, and author of Darwin on Trial, admitted that they intended for intelligent-design theory to serve as a “wedge” for reopening science classrooms to discussions of God.

The good news is that in 2005 the landmark legal case Kitzmiller v. Dover in Harrisburg, Pa., set binding precedent that the teaching of intelligent design in U.S. public schools is unconstitutional because the idea is fundamentally religious, not scientific. The bad news is that in response, creationists have reinvented their movement and pressed on. When they lost the ability to claim that creationist ideas are valid science, they switched to arguing that they were only supporting “academic freedom.” Worse, to further obscure the religious roots of their resistance, they now push for “critical analysis” of climate change, cloning research and other scientific endeavors that they paint as culturally oppressive.Explanation:

Answer: D. a bat

Explanation:

A bat just picks up on the sound waves but does actualy hear stuff

D. A bat would be least affected by sound frequencies of 25,000 to 100,000 cycles per second. Bats use ultrasonic frequencies in their echolocation calls to navigate and locate prey, they have specialized ears and auditory systems that allow them to hear and process these high frequency sounds. While other animals like human, cheetah, porpoise and house cat would not be able to hear these ultrasonic frequencies and would not be affected by them.

Answer:

number of protons

Explanation:

have a good day

Answer:

Equals the number of protons

Hope it helps.

Answer:

After It Found No Apparent Drug Side Effects In Humans, The Company Tested The Effects Of The Drug In 48 Individuals.The Best Stated Hypothesis For The Drug Trial Isa. How Does Drug ... A biotech company had discovered in animal experiments that drug A might be helpful in treating insomnia (inability to sleep). After it ...

The total hydrogen bonds are holding the two strands together are 69 hydrogen bond.

DNA stands for deoxyribonucleic acid. It is defined as the molecules that has genetic material for development of organisms. DNA molecules are made up of two linked strands that  resemble a twisted ladder a shape called as a double helix.

As given there are 100 base pair of DNA molecules, in that 100 base pair there is 23% of cytosine base pair. So, to calculate the the amount o hydrogen atoms in the molecules we can just multiply 23 with 3 as it has 3 hydrogen bonds so the result is 46.

Thus, the total hydrogen bonds are holding the two strands together are 69 hydrogen bond.

To learn more about DNA molecules, refer to the link below:

https://brainly.com/question/12499113

#SPJ1

Answer:

I believe the answer would be B because if I'm sure the bottom is grain which has higher levels in grain and glucose I believe and that doesn't produce energy . The second level is meat and that has protein which give us strength.

Meiosis is a process of cell reproduction and like mitosis consists of prophase, metaphase, anaphase and telophase. However, unlike mitosis, meiosis performs these processes twice, so it has prophase 2, metaphase 2, anaphase 2 and telophase 2.

Importantly, between meiosis 1 and meiosis 2 no replication of genetic material occurs, so at the end of telophase 2, 4 haploid daughter cells will be obtained, which means that they will have only half of the genetic material.

Because of this, this is a process that is used for the formation of gametes (sperm and eggs).

In addition to this, during meiosis 1 homologous chromosomes exchange their genetic material in a process called crossing-over.

Therefore, the answer is D, all options are correct.

Answer:

a,c,e

Explanation:

Answer:

Advection by ocean currents modifies phytoplankton size structure at small scales (1–10 cm) by aggregating cells in different regions of the flow depending on their size. This effect is caused by the inertia of the cells relative to the displaced fluid

Answer:

Cures from the Deep

Explanation:

Many new marine-based drugs have already been discovered that treat some types of cancer, antibiotic resistant staph infections, pain, asthma, and inflammation.

Answer:

The pelagic zone refers to open and free waters in the body of the ocean that stretch between the ocean surface and the ocean bottom and are not too close to some boundary, like a shore or the seafloor or the surface.

Explanation:

The open ocean lies over the continental shelf. The seafloor exists not contained in the open ocean. Therefore, the Red circle in the image exists as the correct answer.

The pelagic zone, also understood as the open ocean exists in the area of the ocean outside of coastal areas. The pelagic zone consists of the water column of the open ocean and can be further separated into regions by depth. The word pelagic exists derived from Ancient Greek 'open sea'. The pelagic zone can be thought of as a designed cylinder or water column between the surface of the sea and the bottom.

Therefore, the red circle stands for the open ocean.

To learn more about open ocean,refer to:

https://brainly.com/question/1449128

#SPJ2

Answer:

Assuming a single gene determines that hair color with two alleles (brown and blonde), and that both parents are heterozygous (Bb) for this gene, the Punnett square would look like this:

see attachment:

So, there is a 75% chance that the child will have brown hair (either BB or Bb), and a 25% chance that the child will have blonde hair (bb).

This calculation is based on the principles of Mendelian genetics, which state that each parent contributes one allele to their child for each gene and that the dominant allele (B) masks the recessive allele (b) in a heterozygous individual (Bb).

Therefore, based on the given information, the probability that Joe's father and mother will have a child with brown hair is 75%, and the probability that the child will have blonde hair is 25%.

Explanation:

The addition of buckthorn results into blocking of the light. This is an unintended consequence of adding an organism to an ecosystem. Thus, the correct option is C.

Invasive species is also called as introduced species or alien species which significantly modifies or disrupts the ecosystem in which it colonizes. Such species may arrive in the new areas through various ways such as natural migration, however they are often introduced by the activities of other species such as humans and other higher animals.

Invasive species are capable of causing extinctions of the native plants and animal species, reducing the biodiversity, competing with native organisms for the limited amount of resources, and altering habitats.

Therefore, the correct option is C.

Learn more about Invasive species here:

https://brainly.com/question/21452505

#SPJ1

When body temp increases it causes metabolic reactions to increase, which releases heat that further increases body temp. This is an example of positive feedback.

Positive feedback is a process in which a change in a system leads to an amplified or increased response in the same direction as the initial change, rather than stabilizing the system as negative feedback does. In positive feedback, the output enhances or reinforces the original stimulus, leading to a cascading effect of the process, which can be beneficial or detrimental to the system depending on the context.

Positive feedback loops can be found in various biological processes, such as blood clotting, childbirth, and action potentials in neurons, and can also be observed in non-biological systems, such as climate change and population growth.

Learn more about positive feedback, here:

https://brainly.com/question/13959420

#SPJ1

Many disorders are due to the inability of an individual to break down a particular chemical. A person who has a disease called phenylketonuria (PKU).

Which prevents them from breaking down the amino acid phenylalanine, this is one example of a person who is unable to break down a chemical in their body.

Giving a person the right enzymes can help treat these diseases. Chemicals in our bodies are broken down by enzymes, which act as biological catalysts.

Therefore, if a person is deficient in the right enzyme, that person can be cured by giving them that enzyme. Let's discuss the remaining options.

Antigens are dangerous foreign substances that have gotten inside the body. The genetic material is stored on chromosomes, which are found inside the nucleus.

Organelles are cellular structures, such as the mitochondria, nucleus, and endoplasmic reticulum, that have particular roles.

Know more about antigens:

https://brainly.com/question/15694610

#SPJ1

Your question is incomplete, but most probably your full question was,

Many disorders are due to the inability of an individual to break down a particular chemical. Sometimes these disorders can be treated by giving the affected individual the appropriate

(1) enzymes

(2) antigens

(3) chromosomes

(4) organelles

An unsaturated fatty acid characterizes by the presence of a double bound between two carbon atoms. If the fatty acid had only simple bounds between their C atoms, it would be a saturated fatty acid. The correct answer, then, is the one where we can see that double bond between the carbon atoms, or the final one answer shown in the picture, the D option.

Answer:

A Passive transport is a movement of ions and other atomic or molecular subatances across cell membranes without need of energy input.

Explanation:

Answer:

Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy

Explanation:

Answer:

Independent assortment

Explanation:

The type of inheritance displayed by the offspring is a simple independent assortment inheritance according to Mendelian law.

The result of crossing BbGg and bbgg is as follows (see the attached image)

4 BbGg smooth and gray

4 Bbgg  smooth and white

4 bbGg bumpy and gray

4 bbgg bumpy and white

The phenotype ratio from the cross is 1:1:1:1 as far as the independent assortment is concerned.

Now, looking at the population of each phenotype from the cross

Smooth, gray 119

Smooth, white 123

Bumpy, gray 121

Bumpy, white 117

119:123:121:117 is approximately equal to 1:1:1:1.

Hence, the cross agrees with Mendel's law of independent assortment of genes.

Answer:C

Explanation: El Niño can affect weather around the world

Answer:

C. El Niño can affect weather around the world.

Explanation:

It is scientifically proven that El Niño can affect weather around the world. Simply, this is because their long-lasting temperatures can affect normal air movement causing disruptions, in which it can change the temperatures around the world.

Hope this helps, good luck! ;D

Explanation:

Science is a systematic process, which means it follows a careful method that involves observation and experimentation. Through experimentation, information is collected that supports or refutes a scientist's hypothesis.



Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Scientific methodology includes the following:

Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Evidence

Experiment and/or observation as benchmarks for testing hypotheses

Induction: reasoning to establish general rules or conclusions drawn from facts or examples

Repetition

Critical analysis

Verification and testing: critical exposure to scrutiny, peer review and assessment

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Scientific methodology includes the following:



Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Scientific methodology includes the following:

Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Evidence

Experiment and/or observation as benchmarks for testing hypotheses

Induction: reasoning to establish general rules or conclusions drawn from facts or examples



Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Scientific methodology includes the following:

Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Evidence

Experiment and/or observation as benchmarks for testing hypotheses

Induction: reasoning to establish general rules or conclusions drawn from facts or examples

Repetition

Critical analysis

Verification and testing: critical exposure to scrutiny, peer review and assessment

Repetition

Critical analysis

Verification and testing: critical exposure to scrutiny, peer review and assessment

Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Evidence

Experiment and/or observation as benchmarks for testing hypotheses

Induction: reasoning to establish general rules or conclusions drawn from facts or examples

Repetition

Critical analysis

Verification and testing: critical exposure to scrutiny, peer review and assessment

Answer: B: the names of chemicals found in one brand of diet soda. Quantitative means that a number should be involved in the data. All of the other options involve a number of some sort, but names do not fall into that category. Therefore, that is the answer.

Answer:

A chemical reaction that has the general formula of nA → (A)n is best classified as a polymerization reaction.

Explanation: