the DNA sequence reads ACGTTCATT before a mutation occurs. after the mutation, the DNA sequence reads ATCGTTCATT. which type of mutation occurred

Answers

Answer 1

Answer:

Answer : The correct answer is -

Insertion mutation.

An insertion mutation can be described as a permanent change in the genetic material (DNA sequence) due to the addition of one or more nucleotides. It can result in alteration of protein (due to the change in the reading frame of DNA) , which may cause diseased condition.

In the given question, there is addition/insertion of T (thymine) at the second place in the original DNA sequence-

Original DNA sequence -

ACGTTCATT

Mutated DNA sequence - ATCGTTCATT

Thus, it is an insertion mutation.

Answer 2

Answer: addition, you added an extra T between the first A and C

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What can directly lead to unconformity on an exposed rock?A. Uplift
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Answers

The answer is B. Uneven rock layer.
Uneven rock layer can directly lead to nonconformity on an exposed rock. Usually the rocks are layered evenly. When the rocks are uneven it will be exposed and show different kind of rocks.

I think it is uneven rock layer.

How do bivalves feed?

Answers

Bivalves feed by filtering water through their gills and extracting food particles. They use specialized structures called cilia to create currents that bring in water. The food particles, such as plankton and detritus, are trapped by the gills and moved to the mouth using cilia. The bivalve then processes and digests the food before expelling waste materials.

An egg is protected by its outer shell. However, the shell also allows moisture and air to pass through. Which cell structure performs a similar function?A:cell membrane
B:cytoplasm
C:nucleus
D:vacuole

Answers

Answer:

Cell membrane.

Explanation:

The cell is the basic unit of the living organisms. The cell consists of the various cell organelles like nucleus, mitochondria and Golgi. The cell membrane covers the cell boundary.

The outer shell protects the egg and allows the exchange of moisture. The plasma membrane performs the similar functions ad allows the transport of some selected particles only.

Thus, the correct answer is option (A).

A:cell membrane, is right

The process of making changes in the DNA code of a living organism is calleda. selective breeding.
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d. hybridization.

Answers

it is called genetic engineering

The best explanation for all these offspring being female is that

Answers

The male had both Y chromosomes

Most chordates and vertebrates exhibit _____. radial symmetry bilateral symmetry a notochord

Answers

Most chordates have bilateral symmetry.

Symmetrical arrangement as of an organisms or body part along its central axis so that the body is divided into equal halves.

Most of the chordates shows bilateral symmetry which means that the body of the organism can be divided into two equal halves.

The examples of chordates are reptiles,amphibians, et cetera.

The answer is bilateral symmetry.

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