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taurus [48]
3 years ago
7

How would human population be if crossing over did not happen during meiosis

Biology
1 answer:
lisov135 [29]3 years ago
5 0

There wouldn’t be genetic variations so many of us would look the same as each other.

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How is a recessive allele different from a dominant allele?
professor190 [17]

Answer: 1) Recessive allele is unable to express its effect in the presence of dominant allele WHILE a dominant allele is able to express itself even in the presence of its recessive allele.

2) Recessive allele produces its phenotypic effect only in the presence of a similar allele. E.g; tt is dwarf. WHILE a dominant allele does not require another similar allele to produce its effect on the phenotype. E.g; Tt is tall.

3) Recessive allele forms a defective polypeptide or enzyme so that the expression consists of absence of the effect of dominant allele. E.g; white flower colour in Pea. WHILE a dominant allele can form a complete polypeptide or enzyme for expressing its effects. E.g; red colour of flower in Pea.

Explanation:

4 0
3 years ago
Tyler want to learn about the types of insects in the soil near his house. Which would be a benefit of carrying out a descriptiv
Sidana [21]

Answer:

The correct answer is option A. He could collect a large amount of data for a low cost.

Explanation:

A descriptive investigation is a method of the research or investigation where it describes only. The descriptive investigation should carry out the accurate, factual phenomena in a systematic way without influence any causal relationship.

the descriptive investigation does not tell about the reason and method of the phenomena that took place. All three options except option A are false statements in terms of descriptive investigative.

Thus, the correct answer is option A. He could collect a large amount of data for a low cost.

4 0
3 years ago
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What is the function of the xylem in vascular plants?.
Kamila [148]

Answer:

answer below

Explanation:

Xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.

hope this helps

6 0
1 year ago
What are four elements that make up over 95% of the body in most organisms
natima [27]
Oxygen<span>, </span>sulfur<span>, </span>nitrogen<span>, and </span>hydrogen<span>.

</span>
5 0
3 years ago
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Select all that apply. which of the following are things you can do to reduce pollution? purchase products made from recycled ma
k0ka [10]
Purchase products made from recycled material
Recycle used Products
and 
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Driving releases pollutants in the air and when we use gas and oil we are using lots of our natural resources and cutting them down day by day.
3 0
3 years ago
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