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
Nadusha1986 [10]
2 years ago
7

Please tell me as much as you can about non-disjunction and the consequences of non-disjunction at meiosis 1 versus meiosis 2

Biology
1 answer:
QveST [7]2 years ago
7 0

Answer/Explanation:

Nondisjunction is when homologous chromosomes or sister chromatids fail to properly separate during meiosis. This means daughter cells have an incorrect set of chromosomes.

Nondisjunction occurs during meiosis I or II, with different results in each. The outcomes at either meiosis i or meiosis ii are shown in the attached picture (nondisjunction at meiosis ii on the left (blue arrow) and nondisjunction at meiosis i on the right (dark green arrow)

Nondisjunction during meiosis i

Nondisjunction during meiosis i occurs when homologous chromosomes fail to properly separate. This results in two gametes without that chromosome, and two gametes with two copies of that chromosome. This is wrong, as each gamete should have one copy.

Nondisjunction during meiosis ii

If the sister chromatids fail to separate during meiosis II (the homologous chromosomes have already successfully separated), then there will be two normal gametes that have one copy of the chromosome (correct), one gamete will not have that chromosome, and one gamete with two copies of the chromosome.

You might be interested in
Which series lists the correct order of steps of binary fission from first to last?
nlexa [21]
Binary fission is a type of asexual reproduction, and /or rather an asexual reproduction common in most prokaryotes.This function happens when the organism divides itself producing another replica of its genetic material and now altogether as the organism itself. 
8 0
3 years ago
Read 2 more answers
3360832553 ____ pass___ wZE2XQ​
ICE Princess25 [194]
What’s the question?
3 0
2 years ago
Read 2 more answers
Can someone please help me with this i don’t know if it’s correct please help me
Nadya [2.5K]

Answer:

c. single bond

b. double bond

d. unsaturated fatty acid

The rest is right :)

Explanation:

"C" is a single bond because saturated fats only have single bonds (no double bonds!)

Unsaturated fatty acids, on the other hand, have a double bond, creating a bent shape.  

4 0
2 years ago
Whitch statement explains how producers are dependent upon consumers for their survival?
NeX [460]

Answer: Hello your answer is.....

The correct answer is: Consumers

Explanation:

Consumers produce carbon dioxide for producers to use during photosynthesis.

Hope this helps!♥

6 0
3 years ago
Only 2 and 3 thank you
Georgia [21]
2 would be A because fertilization is where the sperm cell and egg unite. 3 would be C because in the picture you can see how the division is occuring.
8 0
3 years ago
Other questions:
  • Certain organisms are able to store energy from the sun in energy-rich compounds.which event best illustrates this activity?
    12·1 answer
  • Part 1: explain the similarities and differences between mitosis and meiosis and give an example that occurs in the world around
    6·1 answer
  • Smooth muscle cells lack which protein(s)?
    11·1 answer
  • Which ecosystem is found where the fresh water of a river meets the salt water of the ocean?
    12·1 answer
  • Why is it beneficial to have genotypic and phenotypic variation within a species
    13·1 answer
  • Who mainly gets diarrhea
    14·2 answers
  • How is life going for everyone talk to me mines is saf
    10·2 answers
  • A certain cell has a plasma membrane, ribosomes, and a nucleoid region. Based on this information, it could be __________.
    14·1 answer
  • What letter represents a trench?<br> a. A<br> b. B<br> c. C<br> d. D<br> e. E
    7·1 answer
  • how would the following changes influence the sensitivity of pcr primers for the target dna sequence in a pcr reaction? many mis
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!