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MAXImum [283]
3 years ago
12

Which statement correctly describes proteins?

Biology
2 answers:
baherus [9]3 years ago
4 0

Answer: B

Explanation:

A - not correct since polypeptide chains are formed in ribosomes which exist in the cytoplasm

C. not correct -protein function is determined by DNA

D.  not correct - 3 nucleotides aka a codon is encoded into a single amino acid.

zubka84 [21]3 years ago
3 0

Answer:

B.) DNA is the original source of protein structure.

Explanation:

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A scientist prepares to examine a slide of bacterial cells and another slide of animal cells
Alja [10]

Answer:

The answer is C- Lysosomes are present in both bacterial and animal cells.

Explanation:

Lysosomes contain digestive enzymes inside them, which when released  break down damaged cell parts. These enzymes are <em>acidic</em> in nature and are separated from other organelles with the help of a membrane.

Lysosomes help in<em> killing bacteria and virus</em> invading the cell body. Lysosomes also take part in the process of cell death known as '<em>apoptosis</em>'. This happens only when a certain cell is beyond repair.

Lysosomes are present in plant cells, animal cells, bacterial and yeast cells.

4 0
3 years ago
Annual rings in woody stems are caused by an increase in rings of the
Kryger [21]
<span>B.Secondary xylem. 
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</span>
3 0
3 years ago
B) Decide if the following statements about gas exchange in the lungs are True
Sauron [17]
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7 0
3 years ago
A researcher while working in vitro (outside cell) added helicase enzyme which resulted in the untwisting of the DNA helix. But
GREYUIT [131]
The answer is Topoisomerase.

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Nuclease<span> is an enzyme that cleaves the sequences of nucleic acids into smaller units.</span>
<span>Telomerase is an enzyme that adds specific sequence to the telomere ends.</span>
7 0
3 years ago
When a mutation results in no significant change in the production of a functional protein, it's called a?
DIA [1.3K]

The right answer is: neutral mutation.


Neutral mutation is a nucleotide change in the DNA of the leading to the replacement of one amino acid by another amino acid possessing the same physicochemical properties.

    example: AAA to AGA (Lysine to Arginine).


both these two amino acids are positively charged, so the charge of the protein will not change

7 0
3 years ago
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