All categories

3 years ago

Are these correct if not what is the correct answer

Biology

1 answer:

aleksandrvk [35]3 years ago

5 0

Answer:

The first one is D

Explanation:

You might be interested in

Why is it so difficult to get to the heart during open heart surgery?

drek231 [11]

This is because it has many parts, arteries, and tubes that pass blood around the body. It is hard because it has many parts which are difficult to be cut open. Hope I helped!

6 0

3 years ago

Two guinea pigs, both with the genotype AaBb, produce a large number of offspring. The A gene codes for the presence of white co

Damm [24]

Answer:

Bright white fur 3/4

Black fur 3/16

brown fur 1/16

Explanation:

From the Punnet's square analysis (see the attached image);

A_B_ 9/16
A_bb 3/16
aaB_ 3/16
aabb 1/16

A_B_ and A_bb will always give offsprings with bright white fur since allele A always mask the effect of B.

aaB_ will always give offsprings with black fur since allele a does not produce any protein.

aabb will give offsprings with brown fur since b codes for brown fur colour.

Hence, the phenotypic ratio of the offspring will be;

Bright white fur 3/4

Black fur 3/16

brown fur 1/16

5 0

4 years ago

Atoms of A decay to atoms of B with a half-life of 200,000 years. If there are 20,000 atoms of A to begin with, how long will it

beks73 [17]

Answer:

The correct answer is: 600,000 years

Explanation:

Half-life is the time which is essential or required to decrease a specific substance to half of its initial amount of the substance. So, if a substance has a half-life of 200,000 years then it means it takes 200,000 years to decrease or change into a new substance and remain half of its initial quantity.

half-life amount

0 20000

1 10000

2 5000

3 2500

total half-life = 3 to 2500 atoms of A

so, the time will be = 3 * 200,000 years

= 6000000

8 0

3 years ago

Some events that take place during the synthesis of a specific protein are listed below. A. Messenger RNA attaches to a ribosome

kakasveta [241]

The correct sequence is -

B , E , A , C , D

3 0

3 years ago

Read 2 more answers

Sperm cells get energy to power their movement from ________, which is contributed by the ________. sperm cells get energy to po

otez555 [7]

Answer:

a) fructose

b) seminal vesicles

7 0

2 years ago

Are these correct if not what is the correct answer ​

Are these correct if not what is the correct answer