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
Taya2010 [7]
3 years ago
5

When the tetrads are formed

Biology
1 answer:
Rudiy273 years ago
8 0

Answer:

B. The chromosomes exchange genetic information.

Explanation:

Crossing over of tetrads during meiosis is very important for the exchange of genetic information.

This step of meiosis allows for each chromosome to be genetically unique and distinct from the others, creating genetic variation.

Crossing over does not double the number of chromosomes or reduce the number. The number of chromosomes stays the same.

So, the correct answer is B. The chromosomes exchange genetic information.

You might be interested in
There are two different species of finch that live on the same small island, species A and
vitfil [10]
I would say either 2 or 4, but 4 is more likely. New mutations can cause the finch to be able to eat larger seeds, or it can cause it to not be able to eat large things. The environment can also be a big factor. Finches living in the trees are closer to the seeds and the finches living in the logs are closer to the insects.

Hope this is clear enough.
8 0
4 years ago
6. What are the three main parts of the cell theory?
kari74 [83]

Answer:

(1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division.

hope this helps :)

7 0
3 years ago
What impact does fast food have on adolescent obesity?
BartSMP [9]
Fast Food often contains more sodium, carbs and sugar counts than most home cooked or healthy meals. For kids whos parents are on a budget, fast food is the often option for meals, causing calorie counts to build up, eventually turning into stages of obesity. The average child calorie intake is between 1,600-2,500 per day. It is also recommended that children under age 18 should refrain from sodium counts higher than 2,200 per day. For one meal at McDonalds, to get a cheeseburger, fries and a coca-cola beverage, you are looking at around 1,100 calories and 1,200 mg of sodium. If the child eats this two times a day, the total calorie count would be above the national average, therefore causing the child to gain weight off the extra calories.
7 0
3 years ago
Patrones de semejanzas y diferencias significativas del calentamiento global y el efecto invernadero
sertanlavr [38]

Answer:

ohh no so hard questions

7 0
3 years ago
Before Viewing<br> How would YOU define this word or term?
zhuklara [117]
I don’t exactly understand the question, I’m open to help though!!!
8 0
3 years ago
Other questions:
  • When comparing the skin cells from a dog to bacterial cells which observation would be false
    14·2 answers
  • There are two different species in a habitat. Species A has fewer genetic variations. Species B has a considerable amount of gen
    7·2 answers
  • What part of the brain controls involuntary actions
    15·1 answer
  • Name a structure that is located toward the dorsal side of the body, lateral and superior to the hamstring but inferior to the h
    15·1 answer
  • For the structures below classify them as the type of cell they are; Animal, Plant or Both:
    12·1 answer
  • Why do you think the water keeps its shaped the moment the balloon is popped
    11·1 answer
  • Why did you cut out the chromosomes in pairs
    14·1 answer
  • A population of 6000 ants lives inside a dead log that measures 3 square meters. What is the population density of the ants?
    6·1 answer
  • Which of the following best explains the impact urbanization has on the carbon cycle?
    8·2 answers
  • The part of the brain that consolidates smell into the hippocampus from the olfactory bulbs is the?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!