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Yuri [45]
2 years ago
9

The following questions refer to the essential steps in Meiosis described below.

Biology
1 answer:
juin [17]2 years ago
3 0

Answer:

3. Separation of sister chromatids

Explanation:

Before entering mitosis or meiosis, DNA contained in a cell duplicates and  and each chromosome will have two sister chromatids.

  • In mitosis the sister chromatids separate to produce two daughter cells that have the same information as the original cell before the DNA duplicated.
  • On the other hand, meiosis consists of two cell divisions. During meiosis I, homologous chromosomes separate, producing two daughter cells that have half the information the original cell had, but each chromosome still has two sister chromatids. During meiosis II, the sister chromatids separate, and each daughter cell produces two more daughter cells, that now have a single homologous chromosome of the pair, and which has a single chromatid.

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To assess Mendel's law of segregation using tomatoes, a true-breeding tall variety (SS) is crossed with a true-breeding short va
White raven [17]

Answer:

1. The chi-square statistic is 0. The p-value is 1. Not significant at p < .05.

The chi-square statistic with Yates correction is 0.0642. The p-value is .800028. Not significant at p < .05.

Explanation:

2. By generating large sets of data the ratio will remain same (F1 = 3:1, F2 = 9:3:3:1) according to the Chi-Square analysis. In actual reality, it fails to justify by giving a probability value of 1 that is impossible due to the exceptions of Co-Dominance and Incomplete Dominance...

3 0
2 years ago
This is made from weakened virus particles, that cause the body to build up a defense before you get an infection.
dmitriy555 [2]

Answer:

live attenuated vaccine

Explanation:

The correct answer would be a <u>live attenuated vaccine.</u>

<em>Vaccines are made from weakened/inactivated pathogens or their toxins and when they are administered to the body, they stimulate the body's immune system to produce antibodies that tend to persist and tackle any future invasion of the body by the pathogen.</em>

Vaccines can be an inactivated ones if they are made from inactivated pathogens, <u>they can be live attenuated if they are made from a weakened or attenuated version of the pathogen</u>, or toxoid vaccine if they are made from toxins of the pathogen. Other forms of vaccines include mRNA vaccines, conjugate vaccines, and viral vector vaccines.

5 0
3 years ago
Question 5 (1 point)
Alla [95]

Answer:

A. The reindeer population exceeded its carrying capacity.

Explanation:

8 0
3 years ago
The contracting and relaxing of the heart is known as the?
kipiarov [429]

Answer:

Cardiac Cycle

Explanation:

Contracting= Systolic

Relaxing=Diastolic

5 0
3 years ago
Why is the outdated term "junk dna" a misnomer for noncoding regions of the human genome? Why is the outdated term "junk dna" a
KIM [24]

Answer;

-The conservation of "junk DNA" sequences in diverse genomes suggests that they have important functions.

Explanation;

-The term junk DNA refers to regions of DNA that are noncoding. DNA contains instructions (coding) that are used to create proteins in the cell. However, the amount of DNA contained inside each cell is vast and not all of the genetic sequences present within a DNA molecule actually code for a protein.

-Some of this noncoding DNA is used to produce non-coding RNA components such as transfer RNA, regulatory RNA and ribosomal RNA. However, other DNA regions are not transcribed into proteins, nor are they used to produce RNA molecules and their function is unknown.

3 0
3 years ago
Read 2 more answers
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