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sdas [7]
3 years ago
10

Which type of cell can become any type of tissue in an embryo, but not a placenta cell?

Biology
1 answer:
dmitriy555 [2]3 years ago
7 0

The right answer is pluripotent

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A woman with normal BRCA alleles has a child with a man who has one mutated BRCA1 allele. What is the probability that the child
grigory [225]

Answer:

50%

Explanation:

According to the given information, the woman has normal BRCA alleles while the man carries one copy of the mutated BRCA allele (BRCA1). A diploid organism such as human beings can have two BRCA alleles. A child gets one BRCA allele from the mother and the other from the father.

The child of the couple would get one normal allele from the woman. However, with respect to the BRCA allele, the man would form two types of gametes in equal proportion. The 50% of his gametes would have the mutated BRCA1 allele while the rest 50% would carry the normal BRCA allele. Therefore, the man can transmit either normal or mutated BRCA allele to the child. So, there are 50% chances for the child to get the mutated allele.

6 0
3 years ago
According to some scientists, what resulted from the environmental conditions existing on primitive earth illustrated above?
LekaFEV [45]
<span>Some scientists have presumed that nature of life may exist with the choice dictated by the local environment<span>. The primitive earth illustrated the evolution of the first heterotrophs from aggregates of organic molecules from the development of heterotrophic forms according to the existing environmental conditions.</span></span>  
3 0
3 years ago
In 1951, four scientists were working on solving the structural puzzle of the DNA molecule. Two of those
joja [24]

Answer:

I think its James Watson and Francis Crick

Explanation:

4 0
3 years ago
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the neurotransmitter found at synapse between a motor neuron and skeletal muscle fibers is glycine A) True B) False
Masja [62]

Answer: Option A) True

The statement is true

Explanation:

Impulses of motor neurons could inhibit the cells of the effector (e.g skeletal muscles, gland). Hence, the axons cause the release of glycine which inhibits or checks muscular contractions.

6 0
3 years ago
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Which embryonic tissues did the researchers use to establish an effective cell culture?
madreJ [45]

The Human ES Cell Culture or Embryonic Stem Cells. 

They capture the thoughts because they are unforgettable and have an entire limitless developmental capability. After few months of growth, these are extraordinary cells kept maintaining the ability to create another cell ranging from muscle to nerve to blood inside the body. Any cell has the potential that makes up the body. 

4 0
3 years ago
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