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Oksanka [162]
3 years ago
11

In this Gizmo, only one crossover is allowed in each segment. In reality, crossovers can occur at almost any point along the chr

omosome. How do the random distribution of chromosomes and crossovers create more variation in the resulting gametes?
Biology
1 answer:
nikitadnepr [17]3 years ago
5 0

Answer:

Meiosis and Genetic Variation.

Explanation:

When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between non-sister chromatids of homologous chromosomes. It results in new combinations of genes on each chromosome.

When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other. This is called independent assortment. It results in gametes that have unique combinations of chromosomes.

In sexual reproduction, two gametes unite to produce an offspring. But which two of the millions of possible gametes will it be? This is likely to be a matter of chance. It is obviously another source of genetic variation in offspring. This is known as random fertilization.

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aleksandrvk [35]

Answer:

Option (4).

Explanation:

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Thus, the correct answer is option (4).

7 0
3 years ago
Electricity is added to recharge a battery. What is added to ADP to form ATP?
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Electricity is added to recharge a battery. A third phosphate group  is added to ADP to form ATP.

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The analogy between battery and ATP can be explained as ATP is higher energy form and ADP is lower energy form like charged and uncharged form of the battery. When the terminal or third phosphate is removed from the ATP it becomes ADP and releases energy like a battery. The additional phosphate group when added to ADP forms the ATP molecule like the energy spent by the batteries are recharged by putting in additional energy. Here the additional energy is provided by the third phosphate group.

6 0
3 years ago
Read 2 more answers
1. What is the difference between external and internal fertilization? *
Andru [333]
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7 0
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baherus [9]
B. as I said in the other answer
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What is the correct order of the three subphases of interphase
Korolek [52]

Answer: The subphases of interphase (in order) are G1, S and G2.

Explanation:

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3 years ago
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