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vazorg [7]
3 years ago
7

When a chromosomes undergoes a deletion mutation, information is ?

Biology
1 answer:
Readme [11.4K]3 years ago
7 0
Well,

By the word "deletion" we can deduce that information is lost.  Therefore, when a chromosome undergoes a deletion mutation, information is lost.  This can have disastrous effects if it is a human chromosome.
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2. Which of the following may affect a passenger's safety during a collision? Select all
devlian [24]

Answer: All of them seem to apply.

Explanation:

A., Its important to know if your car that is being collided is a small car or big truck, as they will end up effecting who gets hurt the most.

B., Same thing as A. but with the other vehicle.

C., The velocity matters a lot with a collision, since a slow crash won't have as much damage as a car going fast and hitting someone. Also it won't be as likely to be fatal if the car crashing into you is going slow.

D., This is the only one I'm not too sure on, but it seems like how fast the car can accelerate once collided with would be a big factor on whether it would come to a halt or skid across the road.

7 0
3 years ago
_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of
Hoochie [10]

Complete question:

The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K

  • True
  • False

Answer:

TRUE

Explanation:

The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.

Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.

Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.

K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.

Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.

5 0
2 years ago
In garden peas, the axial (A) flower position is completely dominant to the terminal (a) flower position. You cross a true-breed
xxTIMURxx [149]

Answer:

AA

Explanation:

A true breeding organism for a particular trait is an organism that would produce progeny  with the same trait whe self fertilized.

Hence, since axial flower is represented by the allele A, a true breeding flowering plant will have the genotype AA.

Axial flower (A) is dominant over terminal flower (a).

True-breeding axial flowering plant will have the genotype AA.

True breeding terminal flowering plant will have the genotype aa.

AA is crossed with aa.

AA   x   aa

offspring: Aa, Aa, Aa and Aa.

All the offspring will exhibit axial flowering.

7 0
3 years ago
Purpose: How does DNA function in a cell.
lana [24]

Answer:

The main role of DNA in the cell is it's a Long term storage of information

Explanation:

The main role is to read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA

4 0
3 years ago
A bacterial cell can live independently of other cells and does not have a membrane surrounding its nucleus. Which set of terms
Dima020 [189]
The answer to your question would have to be C
3 0
3 years ago
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