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lana [24]
3 years ago
14

Please answer any questions

Biology
2 answers:
Ksenya-84 [330]3 years ago
6 0
I would say for number three the answer would be 3

Zinaida [17]3 years ago
3 0
For question #8 : the answer is  choice 2.
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Meiosis is necessary for sexual reproduction in eukaryotic organisms. Which of the following statements below regarding meiosis
meriva

Answer:

D. Meiosis forms four cells all with different genetic material

Explanation:

They are haploid cells and each cell only had one set of chromosomes. Meiosis results in variation.

7 0
3 years ago
You experimentally change the DNA sequence directly upstream of a start codon of an operon in E coli to investigate the function
Phoenix [80]

Answer:

Mutation occurred in ribosome binding site that serves as binding site for 30S ribosomal subunit of <em>E. coli</em> and allows the process of protein synthesis to begin.

Explanation:

The initiation of protein synthesis in bacteria requires binding of the ribosome to the ribosome binding site. The ribosome binding site in bacteria consists of the initiation codon "AUG" and the preceding Shine-Dalgarno sequence. The AUG initiation codon and Shine Delgrano sequence are around 10 bases apart.

The sequence is polypurine hexamer and is represented by 5' ...AGGAGG...3'. Shine-Delgrano sequence is complementary to the conserved sequence present at the 3' end of 16SrRNA of the 30S subunit of the bacterial ribosome. Binding of Shine Delgrano sequence of ribosome binding site and the complementary sequence of the 30S ribosomal subunit marks the first step in the initiation of protein synthesis.

Any mutation in the ribosome binding site would not allow the process of protein synthesis to start or would reduce the rate of the initiation of protein synthesis.

8 0
3 years ago
When cells were first taken from henrietta lacks, she was _____.?
Vsevolod [243]
<span>When cells were first taken from Henrietta Lacks, she was suffering from cervix cancer. Henrietta Lacks was a woman whose cervix cancer cells were used as the source of the HeLa cell line nowadays used in medical research. During treatment for cervical cancer in 1951, the cells were taken without her knowledge. The cells were cultured by George Otto Gey who created the HeLa cell line.</span>
8 0
3 years ago
Which organelle is responsible for producing the energy for cellular processes? in an animal cell
muminat
Mitochondria by using cellular respiration to make ATP
3 0
3 years ago
The nurse is caring for a client with a fever (38.2c). which actions should the nurse take when caring for this client
Fynjy0 [20]
Give him/her Medicine because the fever is high/low!!
8 0
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