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nika2105 [10]
3 years ago
12

At a basic level mitosis and meiosis are similar processes. However, they have very different outcomes. Which of the following s

tatements describes an important outcome difference?A. Sister chromatids are separated in meiosis but not in mitosis.B. Sister chromatids are separated in mitosis but not in meiosis.C. Homologous chromosomes are separated in meiosis but not in mitosis.D. Homologous chromosomes are separated in mitosis but not in meiosis.E. None of the above describes a difference between mitosis and meiosis.
Biology
1 answer:
Dafna1 [17]3 years ago
6 0

Answer: C. Homologous chromosomes are separated in meiosis but not in mitosis.

Explanation: There are two main types of division that take place in eukaryotic cells, mitosis, and meiosis. Mitosis is the type of division that is used for growth, repair, and replacement of tissues. Therefore it is not necessary that the cells have  different chromosome numbers or are varied genetically in the daughter cells in the case of mitosis.

Meiosis is the division that takes place to form the gametes for sexual reproduction. It is important in the first stages of meiosis I, to introduce variation and to halve the chromosome number.

Chromosomes numbers are halved (from 46 to 23) during meiosis I because the gametes (sperm and egg) come together and fuse during fertilization to form a zygote. When this fusion occurs (23 from the zygote and 23 from the egg), the chromosome number needs to be returned to that of the parent cell (46).

<h2>Genetic variation is introduced during synapsis which only occurs in meiosis, not mitosis. Homologs exchange genetic information during crossing over of synapsis. Entire chromosomes also separate during meiosis I. </h2>

At the end of meiosis, four genetically unique cells are  produced with half the number of chromosomes as the parent cell (23 cromosomes) . After the process of mitosis is completed, two cells genetically identical to each pther are produced and have the same number of chromosomes as the parent cell (46 cromosomes).

Genetic variation is actually important because of changing environmental conditions.

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C. Mutualistic relationship

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3 years ago
What enzyme places the nucleotides on the dna strand?
stepan [7]

Answer:

What is  DNA polymerase.

Explanation:

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3 0
2 years ago
What is the 95% CI for data set 2?
vesna_86 [32]

Answer: 20 ± 11.32

Explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values where there is a % certainty the true mean value lies in. For example, a 95% CI means there is a 95% certainty the true mean value lies in the interval.

For the data set 2, z-value for 95% confidence interval is z = 1.96

Formula to calculate CI is

x ± z\frac{s}{\sqrt{n} }

where

x is mean

z is z-value

s is standard deviation

n is the sample number

Then:

20 ± 1.96\frac{10}{\sqrt{3} }

20 ± 1.96\frac{10}{1.7320}

20 ± \frac{19.6}{1.7320}

20 ± 11.32

The 95% CI is 20 ± 11.32, which means there is a 95% certainty the true value is between 8.68 and 31.32.

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Answer:

For one, ordering online or through an app frees up staff while increasing order accuracy. It also trims the queue of customers waiting to order and even offers restaurants a means to track their guests' orders and habits.

Explanation:

(hope this helps)

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3 years ago
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