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Slav-nsk [51]
3 years ago
7

A poison added to an in vitro translation mixture containing mRNA molecules with the sequence 5′-AUGAAAAAAAAAAAAUAA-3′ has the f

ollowing effect: the only product made is a Met-Lys dipeptide that remains attached to the ribosome. What is the most likely way in which the poison acts to inhibit protein synthesis?
a. It inhibits binding of the small subunit of the ribosome to mRNA.b. It inhibits peptidyl transferase activity.c. It inhibits movement of the small subunit relative to the large subunit.d. It inhibits release factor. e. It mimics release factor.
Biology
1 answer:
kipiarov [429]3 years ago
3 0

Answer:

The correct answer is c it inhibits the movement of small subunit relative to the large subunit.

Explanation:

According to the question the the poison that is added in vitro translation mixture containing mRNA molecules specific sequence result in formation of Met-lys dipeptide that remains attached to the ribosome.

    This means the translocation step that deals with movement of smaller subunit of ribosome to the next codon(Here to the third codon) is blocked.

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Which partly explains why the domestication of animals tended to increase the human food supply?
Alenkinab [10]

Answer:

A

Explanation:

Before domestication of animals, these animals were wild and early humans used to hunt for food. The hunting process  was not always successful and took a lot of energy from the body. Domestication of these animals made food available and other conveniences. An example is cows that emanated from the domestication of wild aurochs. They provided the milk and meat for humans and also labored in the farm in the cultivation of domesticated plants.

6 0
3 years ago
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant o
Kipish [7]

Answer:

See

Explanation:

Given:

Brown allele (B) is dominant over the white allele (b).

It will be assumed that the alleles are not related to the X and Y chromosomes.

See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)

For both parents hetero-zygous,

P1:

Genotype: Bb (100%)

Phenotype: brown (100%)

F1:

Genotypes : BB, Bb, bB and bb in equal proportions, i.e.

BB (25%), Bb (50%), bb (25%)

Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)

8 0
3 years ago
What does it mean for the wolf to be classified as endangered?
kkurt [141]
It means wolf are begining to disseaper. They are going to be extinct.
7 0
3 years ago
I need help and please explain
Ierofanga [76]

Breaking chemical bonds is typically an endothermic process, which means energy must be added (it must pull in energy)

Breaking of chemical bonds is always endothermic meaning it wants energy, so it takes energy from its surroundings and sucks it in. Think of 'endo' as inside. The chemical bonds want energy inside of it so it can break.

Forming of chemical bonds is exothermic, meaning it releases energy into its surroundings. Think of 'exo' as outside, or exterior, it releases its energy outside of itself.

I hope that makes some kind of sense :)

7 0
3 years ago
Can mutated DNA sequences be passed from parent to offspring
kakasveta [241]

Answer:

Mutation- A change in genetic structure of a organism is called as mutation.

It can be inherited to offspring if it is <em>germline or germinal mutation</em> , <em>mutation that occurs in germ cells like sperm and ovum.</em>

Explanation:

Each of the genes of a child is the copy of his parents,  one from mother and one from father.  Any kind of changes or mutation in any genes of them can be inherited to child

<em>Mutations caused by environmental factors can not transferred to next generation. Mutation caused by UV radiation, smoking, sunlight are non inheritable..</em>

4 0
2 years ago
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