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LenaWriter [7]
3 years ago
9

Does anyone know the answer to this and the reason why you choose that answer?

Biology
2 answers:
umka2103 [35]3 years ago
8 0

3 is your answer. When developing an embryo, fertilization of gamete cells is stage that it goes through .

Dovator [93]3 years ago
5 0

Answer:

1 .) Mitotic division

Explanation:

A zygote is the result of two haploid cells fusing together during fertilization. So if we start after fertilization has taken place we are lift with mitosis. 1 and 4 are left but 4 mentions differentiation of tissues which happens near adulthood and mostly later in life especially not in a developing embryo.

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Vitamin D is an organic molecule that regulates the absorption of calcium by the body. Which of the following elements is most c
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The element that is most common in Vitamin D is CARBON.
3 0
2 years ago
"curdling of milk". it is a chemical change or a physical change? give reason?​
muminat

Answer:

curdling of milk is a chemical change.

Explanation:

because it formed by a chemical process of fermentation. moreover, a chemical change is a change that can't be reversed. This process can't be reversed as well so it's a chemical change

8 0
3 years ago
List ten factors which can be involved in regulating bacterial gene expression (includes specificity and level of expression). "
nirvana33 [79]

Answer:

At least 6 were provided:

1. Transcription.

2. Chromatin domains.

3. mRNA degradation.

4. RNA transport.

5. Translation.

6. Post-transcriptional modification.

Explanation:

Chromatin domains.

Changes to the epigenome can result in changes to the structure of chromatin and changes to the function of the genome.

Transcription.

During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, antiparallel RNA strand called a primary transcript.

Post-transcriptional modification.

is a set of biological processes common to most eukaryotic cells by which an RNA primary transcript is chemically altered following transcription from a gene to produce a mature, functional RNA molecule that can then leave the nucleus and perform any of a variety of different functions in the cell.

RNA transport.

mRNA is created during the process of transcription, where the enzyme RNA polymerase converts genes into primary transcript mRNA (also known as pre-mRNA). This pre-mRNA usually still contains introns, regions that will not go on to code for the final amino acid sequence.

Translation.

In translation, messenger RNA (mRNA) is decoded in the ribosome decoding center to produce a specific amino acid chain, or polypeptide.

mRNA degradation.

Different mRNAs within the same cell have distinct lifetimes (stabilities). In bacterial cells, individual mRNAs can survive from seconds to more than an hour. However, the lifetime averages between 1 and 3 minutes, making bacterial mRNA much less stable than eukaryotic mRNA.

3 0
2 years ago
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kotegsom [21]

Answer:

it's the sun

Explanation:

the water cycle is driven primarily by the energy from the sun

7 0
2 years ago
What is the main functions of the appendix ​
timofeeve [1]

Answer:

The function of the appendix is unknown. One theory is that the appendix acts as a storehouse for good bacteria, “rebooting” the digestive system after diarrheal illnesses. Other experts believe the appendix is just a useless remnant from our evolutionary past.

4 0
2 years ago
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