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rewona [7]
3 years ago
6

A brain stem cell only produces its won type of cell. Which type of stem cell is this brain stem cell?

Biology
2 answers:
kykrilka [37]3 years ago
7 0

<u>Answer:</u> A. Pluripotent

Reasoning: Brain stem cells can only make different types of brain cell

denis-greek [22]3 years ago
4 0

Unipotent is the right answer.

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If all 5' and 3' splice sites were always used to process the pre-mRNA into mRNA, how many possible distinct mRNA sequences woul
lord [1]

The question lacks the diagram. The diagram has been attached below.

Answer:

1.

Explanation:

Exons may be defined as the coding region of the RNA whereas introns are the non coding region of the RNA. The introns must be removed out from the RNA to makes it functional molecule.

The splicing of the given molecule results in the formation of single mRNA. The 1 splicing of the introns remove intron A whereas the second splicing results in the removal of intron B. The functional mRNA consists of the mRNA with exon 1,2 and 3.

Thus, the answer is 1.

6 0
4 years ago
Biomolecules biology help please
Vedmedyk [2.9K]

Answer:

The answer to your question is below

I hope it helps you

Explanation:

a.- Tertiary

b.-

A.- α-Helix

C.- Disulfide bridge

D.- Hydrogen bonding

E .- Hydrophobic interaction

B.- Ionic bond

20.-

2.- α-Helix and β pleated sheets

4.- Collagen and hemoglobin

1.- Determined by the sequence of DNA bases

2.- Form stabilized by hydrogen bonds

3.- Form stabilized by hydrogen bonds, ionic bonds, hydrophobic interactions and disulfide bridges.

4.- Globular proteins

4.- Interaction among several polypeptide chains

3.- Many enzymes

2.-Regular, repeated folding of the peptide chain

1.- Sequence of aminoacids in a protein

8 0
3 years ago
Please answer I need help
lianna [129]

Answer:  I agree with Camila because a lot of waves go through matter, but not all waves do like Electromagnetic waves is one of them. Not all waves need matter. :D

8 0
3 years ago
Which feature separates hominids from other primates
julia-pushkina [17]
The feature that separates hominids from other primates is Complex social skills 
6 0
3 years ago
If all the red-tailed hawks, coyotes, and rattlesnakes are removed from the ecosystem, which BEST predicts the effect on the pop
yanalaym [24]

Answer:

C

Explanation:

The cottontail population will experience rapid growth without predators but will eventually stabilize due to a lack of resources.

8 0
3 years ago
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