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Viktor [21]
3 years ago
11

What does it mean for a species to emerge

Biology
1 answer:
Lesechka [4]3 years ago
3 0

In contrast, genetic drift produces random changes in the frequency of traits in a population. Genetic drift arises from the role chance plays in whether a given individual will survive and reproduce. One definition of a species is a group of organisms that can reproduce with one another and produce fertile offspring.

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Let’s say A plant cell, normally diploid, completely screws up mitosis during metaphase and pulls full copies of all chromosomes
andrezito [222]

Answer:

4N

Explanation:

Mitosis is the process whereby a cell duplicates or produces another identical copy of itself. The mitotic process, which occurs in four main stages produces two daughter cells that are genetically identical to the parent cell. For example, a diploid organism (2n) will produce two daughter cells with 2n from mitosis.

However, in a case whereby a plant cell (A) screws up mitosis during metaphase and pulls full copies of all chromosomes to one side. This would result in one daughter cell having 4n or tetraploid number of chromosomes. Ideally, mitosis separates the chromosomes equally into the two daughter cells to have 2n each. If one cell has all chromosomes, it means that cell will have all the 4n.

For example, in a diploid human cell with 46 chromosomes (2n). Mitosis should occur in such a way that each daughter cell will have a diploid 46 number of chromosome (2n). However, if all the chromosome ends up in one cell during mitosis, that cell will have 92chromosomes, which is 4n or tetraploidy.

8 0
2 years ago
The universe consists of many different galaxies, which, in turn, consist of many different solar systems. Each solar system has
leonid [27]

Answer:

D. all of these

Explanation:

6 0
3 years ago
Ba-17 why are low head dams dangerous to small boats and paddle craft
Dmitry_Shevchenko [17]

Low-head dams are dangerous structures that basically extend from one side of a riverbank to the other. Low-head dams block the water way partially and the water moving over the dam produces a strong circular current at the lower part of the dam. Low-head dams are dangerous to small boats and paddle craft because the strong circular current below the dam can trap small boats and paddle craft and pull them under the dam.

5 0
3 years ago
Read 2 more answers
Which statement is true about Earth′s layers?
Arada [10]

Answer: A.

Explanation:

8 0
3 years ago
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Every part of planet earth is touched by the
ra1l [238]
Soil?
The atmosphere?
Air?

I don't understand how you want this question answered
5 0
3 years ago
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