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BaLLatris [955]
3 years ago
8

What causes dark circles and bags under eyes?

Biology
1 answer:
IRINA_888 [86]3 years ago
3 0
Certain medication could cause the blood vessels in your eyes to dilate. Also lack of sleep and sleeping on your stomach can also cause this.   <span />
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dmitriy555 [2]
D is the best choice. 
4 0
3 years ago
A father possesses an X-linked disorder. What is the chance that his son will inherit this genetic abnormality from the father?
Svet_ta [14]

X-linked disorder is a recessive autosomal disorder, which means that

There is a 1 in 4 chance (25%) of having a child who is unaffected.

There is a 1 in 4 chance (25%) of having a child who is affected by the condition. These children have two copies of the gene that do not work correctly.

There is a 1 in 2 chance (50%) of having a child who is a carrier of the condition.  These children have one working copy of the gene and one copy of the gene that does not work correctly.

7 0
3 years ago
Read 2 more answers
Gene mapping for beak color and feather length in biology what is this
just olya [345]
I am not entirely sure about this. So maybe my response can help you find the answer a little better if my answer is not entirely right?

These last three questions are referring to everything you just worked on. So all you would have to do is refer back to your previous answers. Recall that the titles of the "part 1, 2, and 3" are titled "crossing beak color and tail-feather length", "crossing beak color and feather color", and "mapping tail-feather length and feather color".

1.List the distances between each pair of genes:
beak color and tail-feather length: 20 MU
beak color and feather color: 16 MU
tail-feather length and feather color: 4 MU

2.Which two alleles are the farthest apart?
(the one that is 20 MU apart) Y and L

3.Which two alleles are the closest together?
(the ones that are 4 MU apart) L and B
7 0
3 years ago
When a cell does not contain a nucleus, where is the DNA?
KengaRu [80]

Answer:

The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane. Many prokaryotes also carry small, circular DNA molecules called plasmids, which are distinct from the chromosomal DNA and can provide genetic advantages in specific environments.

Explanation:

6 0
3 years ago
What does a cost benefit indicate
kramer

That it has higher value than other things being sold.

4 0
3 years ago
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