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nalin [4]
3 years ago
12

If you look through a microscope and see a cell with chromosomes lined up two by two, what stage of cellular reproduction must y

ou be looking at?
1. mitosis only
2. meiosis I only
3. meiosis II only
4. either mitosis or meiosis I
5. either meiosis I or meiosis II
Biology
1 answer:
Ipatiy [6.2K]3 years ago
6 0

Answer:

2. meiosis I only

Explanation:

During the zygotene stage of prophase-I of meiosis-I, homologous chromosomes synapse and are paired up. These paired homologous chromosomes are called bivalents. These paired homologous chromosomes align themselves at the equatorial plate of the cell during metaphase-I. Therefore, when observed through a microscope, cells are shown lined up two by two. During meiosis-II and mitosis, individual chromosomes with two sister chromatids are aligned at the cell's equator in metaphase.

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Answer:

1.d. The crab expels carbon dioxide into the hydrosphere when glucose is converted into ATP.

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How does carbon move from living things to the atmosphere?

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Explanation:

Converts glucose and oxygen into water and carbon dioxide, which releases energy as ATP

Explanation:

Cellular respiration is the process in which sugars are broken down into energy that can be used, so energy - or ATP - must be a product. Also, the chemical equation for the process is the following (the reactants are on left side of the arrow while the products are on the right):

C_6H_1_2O_6 + 6O_2 ⇒ 6CO_2 + 6H_2O6CO

2

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2

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2

+6H

2

O represents carbon dioxide and water, the answer must be the third option listed.

MARK A BRAIN LESS

7 0
2 years ago
Which psychological concept did Pavlov's dog help him describe?
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Answer is A.

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3 0
3 years ago
What happens as a result of insertion
olga2289 [7]
As a result of insertion, <span>frameshift mutations can be caused, and this generally results in a nonfunctional protein.</span>
6 0
3 years ago
Which elements are the most abundant in living organisms? Select all that apply.
Vanyuwa [196]
Carbon oxygen and hydrogen
6 0
3 years ago
Read 2 more answers
If two chromosomes of a species are the same length and have similar centromere placements and yet are not homologous, what is d
Citrus2011 [14]

Answer: The genetic content in non-homologous chromosomes would be different.

Explanation:

Homologous chromosomes have the same length, share the same position of centromere and the same types and location of genes. If two chromosomes of a species are the same length and have similar centromere placements and yet are not homologous, the genetic content would be different.

7 0
3 years ago
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