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2 years ago

What are the cons of fetal stem cells

Biology

2 answers:

Maslowich2 years ago

8 0

Answer:

The research is unethical(fetal stem cells) since the blastocyst, an unimplanted human embryo at the sixth to eighth day of development, is destroyed during the stem cell extraction process.

ololo11 [35]2 years ago

6 0

Answer:

Embryonic Stem Cell Disadvantages

1. Difficult to differentiate uniformly and homogeneously into a target tissue. 2. Immunogenic—ES cells from a random embryo donor are likely to be rejected. after transplantation.

Explanation:

The main disadvantage with embryonic stem cells is the way that they are acquired. Since human embryos are destroyed during the process of harvesting embryonic cells, this makes the research unpopular with those that believe human life begins at conception and that this life is being destroyed.

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Sickle cell anemia is a genetic disorder obtained from

Anika [276]

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3 years ago

During earth's early history,

Juli2301 [7.4K]

option 2 seems appropriate for me!

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3 years ago

In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over

jeyben [28]

Answer:

1. ddaa

2. DdAa

3. One from each parent

4. False

5. 0.25

6. 0.25

7. 0.25

8. 0.5

Explanation:

The remaining part of the question is

1. What is Jane's genotype?

2. What is Paul’s genotype?

3. Where did Jane get her gene for curly hair? From her mother or father?

4. True or False: Jane's mother was heterozygous for curly hair?

5. What fraction of Paul and Jane's children should have curly hair and dimples?

6. What fraction of their children would have straight hair and no dimples?

7. What fraction should have dimples but not curly hair?

8. What is the probability of getting any offspring with dimples

Solution

1. Genotype of Jane's mother -ddaa

2. Genotype of Paul (heterozygous for dimples and curly hair) – DdAa

3. One “a” gene from mother (whose genotype for hair was aa) and second “a”gene from father (whose genotype was Aa)

4. False. She was having straight hair

5. Offspring of Paul and Jane

DdAa (4), Ddaa (4), ddAa(4) and ddaa (4)

4 out of 16 offspring will have curly hair and dimples = 0.25

6. ddaa, 4/16 = 0.25

7. Ddaa , 4/16 = 0.25

8. Ddaa, DdAa, 8/16 = 0.5

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2 years ago

Why is O the most common blood type in humans even though it is a recessive trait?

Molodets [167]

Because the gene for the O blood type is common within in the gene pool.

It doesn't matter whether the gene is dominant or recessive, it matters on how on that ^

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3 years ago

Why is the plasma membrane called a selectively permeable membrane

Ksivusya [100]

Plasma membrane allows some material to pass through it while on the same time it blocks other material from entering through it.

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3 years ago