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cluponka [151]
3 years ago
7

Gene mutations are relatively uncommon in populations. TRUE FALSE

Biology
2 answers:
butalik [34]3 years ago
8 0
False ..................
Ugo [173]3 years ago
7 0

Answer:

       The right answer to this question is B. False

Explanation:

       Let's think about humans as an example for this question, humans are organisms that are always reproducing, for a mutation to happen, a problem on the division of the cells need to happen, and once this happens, the mutation happens too. Mutations are mostly caused by problems related to chromosomes, and as it's well known, humans reproduce a lot, increasing the chance of these problems to happen. There are several kinds of mutations, some of them don't kill the human, but some of them do, that's why it's a problem society faces every day.

        Technology is always advancing, and we are at the beggining of studies relating CRISPR/CAS9 to help solving this matter.

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4. In gel electrophoresis, are the dna fragments attracted to, or repelled from the negative pole of the electric field?
Rzqust [24]

In the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.

<h3>What do you mean by Gel electrophoresis?</h3>

Gel electrophoresis may be defined as a technique that separates DNA, RNA, and proteins on the basis of their molecular weight.

As we all know, DNA fragments are negatively charged in nature, and hence they always move towards the positive pole of the electric field.

Therefore, in the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.

To learn more about Gel electrophoresis, refer to the link:

brainly.com/question/6885687

#SPJ4

5 0
2 years ago
If body temperture is to high some blood vessels increase in size and sweat glands will excrete sweat resulting in a lower body
MArishka [77]
The answer is number 2
4 0
3 years ago
Which of the following is generally true of an autosomal recessive pedigree?
Alborosie

Answer:

C. On average, 25% of the children are affected by the autosomal recessive disease if both parents are carriers.

Explanation:

A recessive trait is always expressed in homozygous genotype only. To have progeny with recessive traits from two normal parents, both the parents should be heterozygous carriers. For example, two normal parents with genotype "Aa" have 25% of the chances to have a child with homozygous recessive genotype (Aa x Aa = 1/4 AA: 1/2 Aa: 1/4 aa).

An autosomal trait is equally expressed in both males and females. Inbreeding increases the homozygosity and thereby, increases the risk of expression of recessive traits which are otherwise masked in heterozygous genotype.

6 0
4 years ago
What are Spore-bearing structures in fungi called what?
vovangra [49]

Answer:

Fruting bodies

Explanation:

Fungi can produce spores on somatic hyphae or on special spore producing hyphae which are arranged into structers called fruting bodies.

3 0
3 years ago
Which scientific investigation does not include dependent and independent variables?
pickupchik [31]

Answer:

Observing and counting bird populations

Explanation:

7 0
3 years ago
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