1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aev [14]
3 years ago
6

At the end of the mitotic cell cycle, a cell divides into two cells. What must happen before the cell divides? A. The number of

organelles doubles. B. Chromosomes must be copied. C. Four nuclei must be formed. D. The membrane thickens.
Biology
1 answer:
Genrish500 [490]3 years ago
6 0

Answer: The correct option is B.

B. Chromosomes must be copied

Explanation:

This is because, before mitosis occurs the cells must first duplicate or replicate it's DNA during interphase and this is because mitosis is a type of cell division where a parent cell divide into two daughter cells which are genetically identical to the parent cell and carry the exact number of chromosomes of the parent cell.

You might be interested in
5. Species of Homo ______________ found in Java suggest that this species of hominine spread rapidly after leaving Africa.
natulia [17]
The species was Homo erectus
3 0
3 years ago
A bird flies at 12.5 meters per second. the wind speed is 4.5 meters per second. what is the speed of the bird when it flies wit
Agata [3.3K]

Answer:

17m/s

Explanation:

Given parameters:

Speed of the bird  = 12.5m/s

Speed of the wind  = 4.5m/s

Unknown:

Speed of the bird when it flies with the wind = ?

Solution:

The speed of the bird when it flies with the wind is the sum of the speed of the bird and the speed of the wind.

  Speed of the bird with wind  = 12.5m/s + 4.5m/s  = 17m/s

3 0
2 years ago
A man has blood type O, Rh negative. These are both recessive traits. He is married to a woman who has blood type A, Rh positive
frosja888 [35]

IAIARr is the genotype of the mother.

<h3><u>Explanation</u>:</h3>

The blood groups are the heredity characteristics of the individual which governs what antigen will be present in blood and what antibody will be present in the blood plasma.

The blood group has the genetic characteristics where A and B are dominant characters and O is the recessive character. Co Dominance is seen in case of blood grouping. Similar characteristics is seen with Rh character too where Rh positive is the dominant character and Rh negative is recessive.

The father has both the recessive characteristics. So he needs to be genetically homozygous which means that he has genetic setup of IoIo and rr.

Two child born has character of A blood group and rh positive, but the other child is A blood grouped and rh negative.

So the mother ought to be heterozygous with respect to Rh group, but she is homozygous with respect to blood group.

So her genetic setup is IAIARr.

4 0
3 years ago
which factors during meiosis provide the most significant contributions to genetic diversity? structure of the spindle fibers in
PIT_PIT [208]
It would be c hope i could help
7 0
3 years ago
Read 2 more answers
Should the power plant be built here? Why or why not? Use facts from the assignment and your research to support your answer
almond37 [142]
This can’t be answered sorry
5 0
3 years ago
Other questions:
  • What happens during prophase​
    11·2 answers
  • (multiple choice) Daytime temperatures on Mercury are extremely hot because:
    12·2 answers
  • 2. Where is DNA stored in a eukaryotic cell?
    10·1 answer
  • HELP whoever gets right will be marked brainliest
    9·1 answer
  • Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings?
    9·1 answer
  • Adding fertilizer to most aquatic systems results in
    6·1 answer
  • Helpp please will mark brainliest
    12·1 answer
  • WORTH 15 PTS!!!!
    5·2 answers
  • How can increases travel boosted the spread of certain species
    5·2 answers
  • Describe how the design of a preparation relates to the types of supplemental materials
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!