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3 years ago

Which of these descriptions of the behavior of chromosomes during meiosis explains mendel's law of segregation?

2 answers:

8 0

The arrangement of each pair of homologous chromosomes on the metaphase plate during metaphase I is random with respect to the arrangement of others pairs. The mendel's law of segration, states that allele pairs separate or segregate during gamete formation, and randomly unite at fertilization.

IRISSAK [1]3 years ago

3 0

Hello, I noticed that this question was missing its options, so I went online to find them. Here they are:

Which of these descriptions of the behavior of chromosomes during meiosis explains Mendel's law of segregation?

A. The two alleles for each gene separate as homologous chromosomes move apart during anaphase I.

B. The arrangement of each pair of homologous chromosomes on the metaphase plate during metaphase I is random with respect to the arrangements of other pairs.

C. Sister chromatids separate during anaphase II.

Answer:

The correct answer is: A) The two alleles for each gene separate as homologous chromosomes move apart during anaphase I.

Explanation:

Gregor Mendel, considered the father of genetics, studied the process of inheritance by experimenting with pea plants. After seeing the results, he established that each gamete -as a result of meiosis- will receive just one gene copy that is selected randomly. This is what is called Mendel's law of Segregation.

Out of all of the options given, the correct one is option A. Though all of the options describe different events that occur in Meiosis (the cell division process that generates gametes), the only one that explains Mendel's Law of Segregation is option A, because is the option that describes the separation of the two alleles of the gene.

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Answer:

The minimum mass of dissolved cholesterol that the new system must be able to detect is 0.43 milligrams.

Note: The question is incomplete. The complete question is:

GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect borderline high levels of dissolved cholesterol (170, to 200. mg/dL), using a blood sample that is as small as 250 μL Calculate the minimum mass in milligrams of cholesterol that the new system must be able to detect Be sure your answer has the correct number of significant digits.

Explanation:

Range of the equipment to detect cholesterol in blood = 170.0 to 200.0 mg/dL

Minimum amount of cholesterol that can be detected by instrument = 170 mg/dL

Volume of blood sample = 250 μL= 0.0025 dL (1 dL = 100000 μL)

Amount of dissolved cholesterol in 250 μL sample of blood =

170 mg/dL * 0.0025 dL = 0.425 mg

The minimum mass of cholesterol that the new system must be able to detect is 0.43 milligrams.

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3 years ago

Only 2 and 3 thank you

Georgia [21]

2 would be A because fertilization is where the sperm cell and egg unite. 3 would be C because in the picture you can see how the division is occuring.

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Hi! I am confused on how to do Q2. Anyone doing A-levels can solve that questions and explain? Thanks! <3

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Answer:

i) Glucose

ii) β(1-4) glycosidic bonds.

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Explanation:

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