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Sladkaya [172]
3 years ago
7

Which group is more likely to survive significant environmental change, one like black-footed ferrets with almost no variation o

r one like mountain lions with lots of variation? Explain your answer.
Biology
1 answer:
Shkiper50 [21]3 years ago
3 0
Mountain lions with lots of variation because variation is important for species’ survival. If there is an environmental change that negatively affects organisms with a certain trait, variation can insure that the entire species will not be wiped out because some organisms within that species might not have that trait and can survive.
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In the future, doctors may be able to evaluate your DNA to check for genetic markers related to specific medical conditions or h
puteri [66]
First things first, I'd call this a questionnaire rather than a problem but anyways. Your DNA profile is literally your identity, and to have that stored in the medical records would be useful in some other cases besides medical issues. It is like having a copy of your fingerprint in the government's hands. Thus one may find it useful as another way to identify someone when the need occurs. As for purposes such as to be referred for the development of personal medical treatment (I believe you're referring to project CRISPR) , is not as necessary because the way they identify mutated genes or "infected" DNA or cells is by referring it to the normal DNA found in any other cells in your body, and if cells are that easy to access, they do not have the need to keep a medical record just for your DNA sequence along with all your gene codes, especially when you are performing investigations on the same species, humans, who have the same number of chromosomes with the similar genes.
7 0
3 years ago
Which of the following offspring genotypes could result from the fertilization of an egg that had undergone nondisjunction in me
Lorico [155]

Answer:

See explanation below

Explanation:

<em>Non-disjunction occur as a result of lack of separation of homologous chromosomes during meiosis. </em>

As a result, the gametes (the daughter cells formed) produced end up having extra or lesser chromosomes as compared to a normal gamete.

When a gamete with extra chromosome fertilizes a normal gamete, the resulting offspring will have an extra chromosome (trisomy condition).

On the other hand, when a gamete with one less chromosome than normal fertilizes a normal gamete, the resulting offspring will have one less chromosome than normal offspring (monosomy condition).

Assuming a chromosome with Aa gene undergoes non disjunction during meiosis, the resulting gametes either contain both A and a chromosome or contain no chromosome at all.

If Aa gamete is fertilized by a normal haploid sperm (a), the resulting zygote will have the genotype Aaa.

If a gamete with no chromosome at all fertilizes a normal haploid sperm, the resulting offspring will have the genotype a.

5 0
3 years ago
Read 2 more answers
In certain kinds of muscle cells, calcium ions are stored in ________. The rough er both smooth and rough er the cytoplasm the s
Nadusha1986 [10]

Answer;

-In the smooth ER

In certain kinds of muscle cells, calcium ions are stored in the smooth ER.

Explanation;

-The smooth endoplasmic reticulum is the part of the endoplasmic reticulum (ER) which does not have ribosomes bound to it, thus not exhibiting the bumpy appearance shown by the rough endoplasmic reticulum.

-The smooth ER is important in the synthesis of lipids, such as cholesterol and phospholipids, which form all the membranes of the organism. In addition it is important for the synthesis and secretion of steroid hormones from cholesterol and other lipid precursors.

5 0
3 years ago
Read 2 more answers
Define the first two laws of thermodynamics, and define them using examples for each law.
o-na [289]
FIRST LAW OF THERMODYNAMICS *the total heat energy applied to the system is equal to the sum of the change in internal energy of the system and the work done <span>by the system.

</span>
SECOND LAW OF THERMODYNAMICS (entropy) *no process in w/c the total entropy decreases is possible when all the systems taken apart in the <span>process are considered.

BONUUUUSSS :D

</span>
<span> THIRD LAW OF THERMODYNAMICS *The entrophy of a perfect crystal of a substance at the absolute temp. is zero.

I hope this helps! <3
</span>
5 0
4 years ago
describe how Darwin's theory of evolution by natural selection can explain the spread of antibiotic-resistant microorganisms whi
NISA [10]

Answer:

The correct answer is "Darwin's theory of evolution is based on the premise of survival of the fittest; antibiotic-resistant microorganisms are selected by overuse of antibiotics".

Explanation:

Darwin's theory of evolution states that advantageous traits in living beings are selected under the premise of survival of the fittest, where the living beings with the advantageous traits are more likely to survive and reproduce. Darwin's theory of evolution explains the spread of antibiotic-resistant microorganisms, because resistance to antibiotics is an advantageous trait for microorganisms that are constantly in contact with antibiotics. The irresponsibly use of antibiotics leads to the spread of antibiotic-resistant microorganisms, because microorganisms that are naturally resistant to antibiotics are constantly selected and can reproduce and prosper.

4 0
4 years ago
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