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
koban [17]
2 years ago
12

During the early stages of meiosis, two chromosomes in a homologous pair may exchange segments, producing genetic variation in s

ex cells. This process of exchange is called A) transcription. B) crossing over. C) nondisjunction. D) genetic shuffling.
Biology
2 answers:
irina1246 [14]2 years ago
7 0
B: during the early stages of meiosis, chromosomes in a homologous pair exchange segments, the process is called Crossing over.
rjkz [21]2 years ago
6 0

The correct answer is option B, that is, crossing over.  

Crossing over or chromosomal crossover refers to the interchange of genetic substance between the two homologous chromosomes non-sister chromatids, which leads to the formation of recombinant chromosomes at the time of sexual reproduction.  

It takes place in the pachytene stage of prophase I of meiosis at the time of a procedure known as synapsis.  


You might be interested in
What's the rate of change for 1838 to 1990?
maw [93]

Answer:

i think 6 or 7 right

Explanation:

3 0
2 years ago
One difference between carbohydrates and lipids is that
Mrac [35]

The difference is 1) sugars dissolve in water lipids don't. 2) sugars are made-up of subunits that form large polymers and lipids are not and don't form polymers. 3)Lipids store more energy than sugars hoped i helped

8 0
3 years ago
Read 2 more answers
Search around your house. Name two examples of<br> objects that show mechanical energy.
a_sh-v [17]

Answers:

Riding a bicycle and sharping a pencil

Explanation:

6 0
3 years ago
the fluid mosaic model defines the plasma membrane as a structure composed of multiple components, including phospholipid bilaye
Eva8 [605]

Answer: True

Explanation: The plasma membrane is a membrane the protects the cell and its environment. It regulates what goes inside and what comes out of the cell. .

Plasma membrane as a structure composed of multiple components, including phospholipid bilayer, carbohydrates, and other lipids. The phospholipids possess one head and two tails. The head is basically polar and hydrophilic (water-loving) while the tails are non-polar and hydrophobic (water-fearing).

The plasma membrane is decorated with proteins. Some protiens are extrinsic proteins that run halfway through the membrane, while others are called integral proteins that go entirely through the membrane. The function of these proteins is to serve as channels to allow the molecules to enter and leave the cell.

7 0
3 years ago
The dominant allele is for black fur. The recessive allele is for white fur.
Leokris [45]

Answer:

FF , Black fur.

ff, white fur.

Explanation:

Genotype may be defined as the genetic constitution of the organism whereas phenotype depends on the genotype for the physical expression of the trait.

Let the genotype of the dominant fur (black ) be D and the genotype of white fur (recessive)  is f. homozygous means the individual should have the same allele for the trait. A mouse with homozygous dominant has genotype FF . This mouse has black fur. A mouse homozygous for the recessive trait has the genotype f. This mouse has white fur.

Thus, the answer is FF , Black fur.

ff, white fur.

6 0
3 years ago
Read 2 more answers
Other questions:
  • In a convergent muscle, the muscle fibers are __________.
    7·1 answer
  • Why did Copernicus not tell anyone about his theory until his deathbed?
    6·1 answer
  • When making a guess and retesting this information, a theory or ___________ may be formed which explains why something has occur
    10·1 answer
  • What are the three lines of fossil evidence that point to an early origin of life on earth and how do they tell us when life aro
    9·1 answer
  • You notice the line of mercury in your barometer is all the way to the top—30 inches. Is this high or low pressure? What kind of
    6·2 answers
  • Familial Down syndrome is similar to primary Down syndrome in that it is caused by trisomy 21. However, in familial Down syndrom
    9·1 answer
  • Which of the following describe density-dependent factors? They act to regulate population growth. They can affect birth rates o
    8·1 answer
  • This energy source also provides us with products such as ink, eyeglasses, and tires.
    14·1 answer
  • Some people choose to have health screenings performed through genetic analysis. What is a direct benefit of this analysis ?
    7·1 answer
  • Why are some scientists concerned abot the carbon dioxide in our atmosphere
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!