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neonofarm [45]
2 years ago
11

Cells with half the number of chromosomes as the original cell are formed by what process?

Biology
1 answer:
alina1380 [7]2 years ago
8 0

Answer:

Meiosis.

Explanation:

Humans have Diploid cells in our normal cells. However, sex cells contain Haploid cells. To make sex cells or gametes, meiosis needs to be performed(which multiplies the DNA and splits it into 4 daughter cells).

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How does the structure of dna affect its function
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Answer:

The function of DNA is tied to its structure. ... When two strands of DNA come together, base pairs form between the nucleotides of each strand. Nitrogenous bases pair together in the following way: A-T and C-G. Bases interact through weak bonds, called hydrogen bonds, that can be easily broken and reformed.

Explanation:

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2 years ago
Harold’s wonders how much of a role genetics plays in determining his weight. He has heard about a gene, called leptin. Mice wit
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Weight is a quantitative trait and mice with defective leptin tend to have problems controlling weight since this gene is associated with it.

<h3>What is a quantitative trait?</h3>

A quantitative trait is a phenotypic feature controlled by many genes and the interaction with the environmental factors.

Weight, height, behavioral features are all examples of quantitative traits because these types of phenotypic features show continuous variation.

Quantitative traits are modulated by gene interactions and therefore exhibit both epistatic and pleiotropic effects.

The leptin gene is a gene in mammal involved in neuronal control to metabolic signals and thereby it is associated with weight.

In conclusion, weight is a quantitative trait and mice with a defective form of the leptin gene tend to have problems controlling weight because it is associated with this trait.

Learn more about quantitative traits here:

brainly.com/question/88535

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3 0
2 years ago
Which of the following is not a possible cause of mass extinction?
mr Goodwill [35]

Answer:

It's C.

Explanation:

8 0
3 years ago
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1. What was the worldwide avemge life expectancy in 2000?
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What are TWO factors that could affect the rate of diffusion?
Jet001 [13]

Answer:

Diffusion occurs when particles move from an area of high concentration to an area of low concentration. The factors affecting rate of diffusion are: concentration, temperature, mass of the particle and properties of the solvent in which diffusion occurs. Faster movement equals faster diffusion.

Explanation:

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