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Mrrafil [7]
3 years ago
14

What is a stem cell research?

Biology
1 answer:
Ludmilka [50]3 years ago
6 0
Stem cells<span> are a class of undifferentiated </span>cells<span> that are able to differentiate into specialized </span>cell<span> types. Commonly, </span>stem cells<span> come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic </span>stem cells<span>) and. Adult tissue (adult </span>stem cells<span>).

hope this helps!</span>
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Organic phosphate is taken up by producers during photosynthesis and released by cellular respiration.
Zina [86]

Answer:

true

Explanation:

pa brainliest po please

<u><em>#carryonlearning</em></u>

4 0
3 years ago
If you block histone deacetylase, what effect would you expect to see on transcriptional activity?.
Shalnov [3]
Histone deacetylase is responsible for removing the acetyl group from the histone 3 lysine 9 residue. Remember that deacetylation is one step in converting euchromatin to heterochromatin. Because euchromatin is transcriptionally active (transcriptional machinery is able to reach gene of interest), and blocking histone deacetylase activity would result in an the DNA remaining as euchromatin, we would expect to see an increase in transcriptional activity.

So there’s your answer: An increase in transcriptional activity.
8 0
2 years ago
Which of the following examples is an endothermic process? Which of the following examples is an endothermic process? Heat is ne
pychu [463]
<h2>Endothermic Process</h2>

Explanation:

An example of endothermic process is :

Heat is needed for water to boil.

Endothermic process can be defined as a process in which heat energy is absorbed from the surrounding that bring about changes in the molecular level like breaking chemical bonds, inter-molecular force of attraction etc.

Boiling of water is an endothermic process because during this process water absorbs heat , its kinetic energy increases and then it boils.

3 0
3 years ago
A mating between a male donkey (2n = 62) and a female horse (2n = 64) produces sterile mules. why are mules sterile?
kirza4 [7]

The horse and donkey, though closely related by sharing a common ancestor, are different species. They have different number of chromosomes hence pairing of homologous chromosomes during fusion of gametes becomes complicated. The mule will have an extra chromosome from the horse hence will have abnormalities such as sterility. A Mule is unable to reproduce due to this same phenomenon. Homologous chromosomes are not well paired for meiosis I.






6 0
3 years ago
Any condition in an experiment that can be changed?
SCORPION-xisa [38]
Any condition in an experiment that can be changed is a control variable!!
You control it!!
6 0
3 years ago
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