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Alik [6]
2 years ago
12

What type of person is an entrepreneur?

Biology
1 answer:
Fed [463]2 years ago
6 0
All above I think I don't know
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Which part of the membrane helps large molecules pass through it
Dvinal [7]
Channel proteins help large molecules pass through the cell membrane.
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2 years ago
The plasma membrane of the sea urchin egg ______. A. is outside of the fertilization membrane B. releases calcium, which initiat
Butoxors [25]

The plasma membrane of the sea urchin egg has receptor molecules that are specific for binding acrosomal proteins .

<h3>What is plasma membrane ?</h3>

Plasma membrane is the outermost covering of the body which selectively permits the entry and exit of different type of materials .

Thus ,it is also called as selectively permeable membrane.it also separates the inner and outer environment of the cell .

It also helps in the diffusion process .

<h3>What are sea urchins ?</h3>

Sea urchins belongs to the animalia kingdom , Echinodermata Phylum, and Echinoidea class . they are small marine animals .Sea urchins are spiny , globular .

Learn more about sea urchins here :

brainly.com/question/23213828

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8 0
1 year ago
A carrier mother (XHXh) of hemophilia marries a normal father(XHY). *Use allele letter H What are the mothers and fathers genoty
ZanzabumX [31]

Answer: The mother of the man can be either XHXH or XHXh and pass her normal allele to the son and his father can be either XHY or XhY, he only passes his Y chromosome. The mother of the woman can be XHXH or XHXh and the father could be XhY, then she could have inherited the normal allele from the mother and the affected allele from the father. But also, the mother of the woman could be XHXh or XhXh and the father could be XHY, so in this case she could have inherited the normal alele from the father and the affected allele from the mother.

Explanation:

Hemophilia is an inherited bleeding disorder in which the blood does not clot properly. This can cause bleeding either spontaneously or after an injury.

<u>It is related to the X chromosome and it is recessive for females</u>, this mean they need both affected alleles to develop the trait. <u>Males only need one recessive allele because they only have one X chromosome</u>. This means that females need both parents to be at least carriers (although one or both can also have the disease or both recessive alleles). While males inherit it only from the mother, either she is a carrier (one recessive allele) or she has the disease (both recessive alleles). Then the mother passes the X chromosome with the affected allele to the son, and that son only receives the Y chromosome from the father, which does not have the gene that determines this disease.

If the mother is a carrier, her genotype is XHXh, being XH the normal allele and Xh the affected allele. She does not have hemophilia because she has a dominant allele. The father is XHY, so he does not have the disease because his only allele is normal (dominant)

The mother of the man can be either XHXH (she can only pass a normal allele) or XHXh and pass her normal allele to the son (in this case, the recessive allele is not inherited by chance.) His father can be either XHY or XhY, he only passes his Y chromosome which is not related to the disease. The mother of the woman can be XHXH or XHXh and the father could be XhY, then she could have inherited the normal allele from the mother and the affected allele from the father. But also, the mother of the woman could be XHXh or XhXh and the father could be XHY, so in this case she could have inherited the normal alele from the father and the affected allele from the mother.

4 0
3 years ago
Tina, an environmental scientist, is protesting the use of polychlorinated biphenyl (PCB).
Lyrx [107]
<span>The EPA under the Toxic Substances Control Act also referred to as the TSCA are responsible for setting rules and regulations regarding polychlorinated biphenyl, PCB. Tina should reference the TSCA to help support her protest against the very toxic chemicals and compounds in PCB.</span>
6 0
3 years ago
Give brainliest
Kryger [21]

Answer:

Release carbon into the atmosphere through respiration

Explanation:

During cellular respiration the molecule takes in oxygen and glucose. ... Pyruvate is transported into the mitochondria and loses carbon dioxide to form a two-carbon molecule.

5 0
2 years ago
Read 2 more answers
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