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
Naddika [18.5K]
3 years ago
8

Crossing over occurs in prophase of meiosis I. Crossing over results in A. half the number of original chromosomes. B. double th

e number of original chromosomes. C. genetically identical homologous chromosomes. D. new combinations of genes.
Biology
2 answers:
dlinn [17]3 years ago
7 0

Answer:

New combinations of genes.

Explanation:

Crossing over may be defined as the process of the  exchange of the genetic material of the homologous chromosomes between non sister chromatids . The crossing over occurs in the prophase of the meiosis.

The some portion of genetic material exchanges randomly on the crossing over. This causes the generation of the new combination of genes in the organism. The linked chromosomes shows crossing over between them.

Thus, the correct answer is option (D).

klio [65]3 years ago
6 0

D. new combinations of genes.

You might be interested in
Oxygen is so pervasive in the environment that it would be very difficult for a microbe to always avoid physical contact with it
IgorLugansk [536]
If it cannot avoid it, it just find a mechanism to use oxygen and make it less harmful to itself. This is how the process of cellular respiration may have evolved
8 0
2 years ago
What are the reproductive structures and main characteristic of angiosperms?
castortr0y [4]

Answer: The answer is b.

Explanation: The flowers are one of the most differentiating features of angiosperms. They are the reproductive structures of angiosperms. The flower has a thalamus that is a short axis and four whorls of sporophylls arranged on the thalamus. The four whorls of floral leaves include calyx, corolla, androecium and gymnocium.

8 0
2 years ago
Tides are caused by the gravitational pull of the moon and the sun on Earth's
Inessa [10]
Poles surface water equator
4 0
2 years ago
Read 2 more answers
Which of the following materials is most porous? shale clay unsorted sand and rock loosely packed gravel
lys-0071 [83]
Loosly packed gravel

4 0
3 years ago
Read 2 more answers
Explain how answering questions would help the genetic counselor understand the specific genetic causes and severity of the pers
vodka [1.7K]

A genetic counselor is a health-care worker who has received specialized training. They are experts in medical genetics as well as counseling.

  • For people who are affected by hereditary diseases, genetic testing brings a slew of questions and concerns.
  • Therefore, genetic counselors assist in identifying families/members of families that may be at risk of developing a genetic condition.
  • They may also assist in collecting and analyzing family history and inheritance patterns, calculating recurrence risks.
  • After getting all the relevant information, they can then provide information about genetic testing and related treatments.

Learn more about a genetic counselor: brainly.com/question/15821814

3 0
2 years ago
Other questions:
  • Small openings called vacuoles allow carbon dioxide to enter a leaf.<br> True or false
    15·1 answer
  • Which organelle breaks down sugar molecules that supply energy to the cell
    15·2 answers
  • In sordaria, how many different chromosomes arrangements can be produced through independent assortment?
    8·1 answer
  • The total amount of organic matter present in any trophic level is called A) bioassay. B) biodiversity. C) biomass. D) detritus.
    11·1 answer
  • A community of plants and animals together with its environment is a(n) ______.
    11·2 answers
  • We digest starch into?
    7·2 answers
  • Similarities between vertebrates and invertebrates
    7·1 answer
  • In your own words, define or describe what you<br> already know about photosynthesis?
    10·2 answers
  • What is the role of a ribosome in protein production?
    12·1 answer
  • The process by which the surface of a microorganism is covered with antibodies and complement, rendering it more likely to be ph
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!