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
Marina CMI [18]
4 years ago
9

During a single crossover event, how many strands of dna must break? (recall that dna is double-stranded.)

Biology
1 answer:
Serggg [28]4 years ago
4 0
<h3><u>Answer;</u></h3>

<em>Four strands </em>

<h3><u>Explanation;</u></h3>
  • <em><u>Cross over </u></em>is the process which takes place <em><u>during meiosis type of cell division in the prophase I stage of meiosis I</u></em>. During this process, non sister chromatids of the homologous chromosomes pair at a point called chiasmata and exchange genetic materials.
  • <u><em>During cross over the non sister chromatids of homologous chromosomes are exchanged </em></u>which means four chromatids must break for the process to take place. Cross over is an important process as it causes genetic variation and hybrid vigor among organisms that reproduce sexually,
You might be interested in
What animals are herbivore
nlexa [21]

Answer:

Explanation:

Turtle?

3 0
3 years ago
Granite and basalt are two common ​
AnnZ [28]

Answer:

YES IT IS MAM or Sir

Explanation:

7 0
3 years ago
Suzie Q wants to know the effect of different colors of light on the growth of plants. She believes that plants can survive best
iren2701 [21]

Answer:

This question is incomplete; the complete part is:

What is the independent variable in this experiment?

A) The plant species

B) The amount of water that each plant gets

C) The amount of time

D) The different types of light the plants were put under.

The answer is D. The different types of light the plants were put under.

Explanation:

In an experiment, the independent variable is the variable that is changed or manipulated by the experimenter in order to bring about a measurable response.

In this experiment, Suzie Q wants to know the effect of different colors of light on the growth of plants. The different types of light used are; white light, blue light, green light, red light. Therefore, the independent variable is the DIFFERENT TYPES OF LIGHT THE PLANTS WERE PLACED UNDER.

6 0
3 years ago
what cell structure is largely responsible for controlling the entry and exit of substances into or out of the cell?​
ehidna [41]

Answer:

plasma membrane

Explanation:

The plasma membrane is also known as the cell membrane. It is the boundary between the internal components of a cell and its external surroundings. It controls the entry and exit of substances into or out of the cell and thus, facilitates the exchange of substances between the cells and their external environment.

7 0
3 years ago
An anthropologist has just arrived at a new field site and feels overwhelmed with a creepy, profound feeling of alienation, of b
gizmo_the_mogwai [7]

Answer:

The correct answer is - culture shock.

Explanation:

Culture shock is an experience a person or anthropologist may have when one transfer to a cultural environment that is distinct or vary from their own culture.

The anthropologist in this question is experiencing alienation feeling, trivial when he move to new field site, he is experiencing cultural shock. It is also cause disorientation a person.

Thus, the correct answer is - culture shock.

5 0
3 years ago
Other questions:
  • N sexual reproduction, an offspring is produced with genes from both parents. when the offspring has a new genetic variation tha
    14·1 answer
  • Carbon dioxide enters the blood at the _____________________ capillaries. here, some of the carbon dioxide binds to the ________
    10·1 answer
  • This is the process of combining two incomplete proteins to make a complete one.
    8·2 answers
  • Scientists like using models because they are often _____ than the real thing.
    7·1 answer
  • What is a type of epithelial tissue?
    12·1 answer
  • Why would cheek cells have a lot of lysosomes??
    10·1 answer
  • PLEASE HELP <br><br> How are plant cells and animal cells similar? How are they different?
    5·2 answers
  • What is the meaning of breasts
    14·1 answer
  • What DNA sequences control when and where the gene is turned on ?
    14·1 answer
  • A species of alligator remains unchanged for 100 million years, then suddenly an ice age forces them to adapt to colder temperat
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!