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xenn [34]
3 years ago
6

What happens when a gene is altered?

Biology
1 answer:
olga_2 [115]3 years ago
6 0

Answer:

a

Explanation:

When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can't function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.

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A biologist at World University used Procedure IV to conduct an additional study and found the sequence following below. Using y
Nady [450]

Answer:

Valine-Leucine-Proline-Lysine-Histidine

Explanation:

The central dogma of biology is the process by which DNA is used to synthesize RNA and subsequently amino acid sequence (PROTEIN). The processes of transcription and translation is used in gene expression. Transcription is the process whereby the information encoded in a DNA molecule is used to synthesize a mRNA molecule. Transcription is catalyzed by RNA polymerase enzyme, which uses complementary base pairing rule i.e Adenine(A)-Thymine(T), Guanine(G)-Cytosine(C) pairing.

N.B: Thymine is replaced by Uracil in the mRNA

For the above DNA sequence: CAC GAC GGA TTC GTA, the mRNA sequence will be: GUG CUG CCU AAG CAU

Translation is the second process of gene expression which involves the synthesis of an amino acid sequence from an mRNA molecule. The mRNA is read in a group of three nucleotides called CODON. Each codon specifies an amino acid (see attached image for genetic code)

Based on the attached genetic code, an mRNA sequence: GUG CUG CCU AAG CAU will encode an amino acid sequence: Valine(Val) - Leucine (Leu) -Proline (Pro) -Lysine (Lys) - Histidine (His).

GUG specifies Valine amino acid

CUG specifies Leucine amino acid

CCU specifies Proline amino acid

AAG specifies Lysine amino acid

CAU specifies Histidine amino acid

5 0
3 years ago
The light independent reaction (calvin cycle of photosynthesis occurs only when ____________.
Anuta_ua [19.1K]
The calvin cycle occurs only when Carbon Dioxide is captured
8 0
3 years ago
What does DNA contain?
Andrews [41]
It is A, i hope this answer helps!
6 0
3 years ago
The parasympathetic division of the autonomic nervous system is called
Nata [24]

Answer:

Rest and digest system

Explanation:

The parasympathetic nervous system is a part of the autonomic part of the nervous system which on the basis of the function they perform is known as the rest and digest system.

The parasympathetic system is activated after the sympathetic nervous system which is associated with the fight or flight response.

The rest and digest system dilates the pupil, maintain the blood flow, increases digestion and the relaxes the body after the excited mode due to fight or flight response

Thus, rest and digest system is correct.

5 0
3 years ago
Which of the following severe weather events is not likely to result in flooding?
Snowcat [4.5K]

Answer: Tornado Uur welcome

Explanation:

4 0
3 years ago
Read 2 more answers
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