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1 year ago

A mutation in which promoter region would likely result in a reduction in transcription level?

1 answer:

5 0

A mutation in which the promoter region would result in a reduction in transcription level is option(d)i.e,TATA, GC and CAAT.

A mutation in biology is an adjustment to the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA. DNA or RNA can be found in the viral genome.

Base substitutions, deletions, and insertions are the three different forms of DNA mutations. Point mutations are single-base substitutions; for example, the sickle-cell disease point mutation Glu -----> Val. There are two types of point mutations, the most prevalent of which are. Because it generates a new DNA sequence for a particular gene, the mutation is crucial in the initial stage of evolution because it results in the creation of a new allele. Through intragenic recombination, recombination can also produce a new DNA sequence (a new allele) for a particular gene.

The complete question is:

A mutation in which promoter region would result in a reduction in transcription level?

A. TATA

B. CAAT

C. silencer

D. TATA, GC and CAAT

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Suppose that zonosemata flies whose own wings had been clipped and reattached were attacked more frequently than untreated zonos

umka21 [38]

Answer:

All results for the experimental groups involving wing surgery would be invalid.

Explanation:

The experimental group involving wing surgery would not lead to correct results because it is a direct parameter that is impaired. This has been already clearly stated in the question that these flies are prone to attack compared to those which are not treated. There could be several reasons for that such as: (1) the reattachment would not have been successful, and/or (2) the flies' health (fitness) status would have been compromised.

On the other hand, it is not correct that all experimental groups will lead to incorrect results because the untreated flies were not attacked (or less attacked). Similarly, there is no condition given for houseflies rather only zonosemata flies. So 3rd option is also not possible. Finally, the reliability of the results would definitely change because the treated flies would be more attacked and lead to a clear difference in results.

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3 years ago

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Answer:

1. Evolution

2. Natural selection

Explanation:

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3 years ago

What describes the cells of a wilted plant?

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The central vacuoles contain little water

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3 years ago

what are the structures in the cerebrum that are elevated ridges, which increase surface area to increase the number of neurons

Anni [7]

The purpose of the brain's gyri and sulci, or ridges and grooves, is to increase surface area.

<h3>What is the name for the raised ridges in the cerebrum?</h3>

The shallow grooves on the cerebral cortex's surface are referred to as sulci, while the higher tissue ridges are called gyri.

Signals are transferred between nerve cells in different regions of the brain and body through white nerve fibres that are below the skin. The neocortex, a six-layered structure present in animals, has a wrinkled surface that enhances its surface area.

The cerebellum has an odd surface appearance that hides the fact that the cerebellar cortex, a layer of grey matter, makes up the majority of the structure. This layer's ridges are collectively referred to as folium.

learn more about cerebrum refer

brainly.com/question/28189482

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1 year ago

Please answer quickly

krek1111 [17]

Answer:

part 1 the answer is c

part2 the answer is B

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2 years ago

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