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
Vlada [557]
4 years ago
14

Suppose a sperm cell fertilizes an oocyte. A minute later, a 2nd sperm cell propels itself against the same oocyte. The chromoso

mes from the 2nd sperm cell will not normally function in the resulting embryo because:_______________.
Biology
1 answer:
VladimirAG [237]4 years ago
5 0

Answer:

The second sperm entry is blocked by the fertilized oocyte.

Explanation:

An ovum prevents polyspermy by two mechanism:

1. When the first sperm fuses with the oocyte then rapid depolarization of egg's plasma membrane takes place which prevents other sperms to fuse with the egg.

2. The fusion of sperm cause an increase in the amount of calcium ion in the cytosol of egg. This higher calcium level activates the development of egg which results in the change in the structure of the egg's outer layer. The outer layer(zona pellucida) becomes hard and prevent the entry of other sperms.

So the chromosomes from the 2nd sperm cell will not normally function in the resulting embryo because the fertilized oocyte block the entry of other sperms.

You might be interested in
What organs make up the central nervous system?
Delicious77 [7]
B. Brain and spinal cord
The nervous system is an organ system in charge of sending messages to and from the brain<span> and </span>spinal cord<span> to and from all parts of the body. </span>
8 0
3 years ago
Read 2 more answers
Nancy is explaining why chlorophyll is classified as a plant pigment and
Marizza181 [45]

Answer:I think it's A let me know if am wrong

Explanation:

6 0
3 years ago
Read 2 more answers
In which situation would new technology be most likely to cause a change in an existing theory about new structures in a cell?
Jlenok [28]

Hey there! Your answer would be:

The new technology allows detection of a structure that could not be detected previously.

I hope this helps!

7 0
3 years ago
Read 2 more answers
91 less than the quotient of 12 and y algebraic expression
Radda [10]
12/y - 91

quotient means divide and less than mean subtract from something
6 0
3 years ago
Read 2 more answers
The loss of the mineral ________ is associated with purging (i.e., vomiting or using laxatives) and may cause heart rhythm distu
leva [86]
<span>The loss of the mineral Potassium is associated with purging (i.e., vomiting or using laxatives) and may cause heart rhythm disturbances.</span>
8 0
3 years ago
Other questions:
  • What are the two categories of observations?
    8·2 answers
  • The urea cycle rids in the body of excess nitrogen by converting it to a non-toxic form that can be excreted in the urine. It ut
    10·1 answer
  • Give examples of the physical components of an ecosystems that can change populations.
    9·1 answer
  • Choose the statement that accurately describes the relationship between cytokinesis and mitosis.
    6·2 answers
  • Identify an example of a structure created by deposition.
    10·1 answer
  • Organisms best suited to the environment will be the ones that survive and reproduce. This statement best describes A. Natural S
    5·2 answers
  • The glomeruli in olfaction are most nearly analogous to the _____ in vision.
    12·1 answer
  • When bert mixed red, green, and blue light beams together, he ended up with a _______ color?
    15·1 answer
  • Which of the following are what
    8·1 answer
  • The movement of water<br> from bodies of water to the<br> atmosphere
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!