What type of mutation is represented by the following sequence? Original: 123456 Mutated: 154326

A. Breakage

B. Deletion

C. Insertion

D. Inversion

Answer Explanation:

An inversion mutation is represented in the sequence 1 5 4 3 2 6. An inversion error is a type of mutation where an entire sequence of DNA is reversed. In this case, 2 3 4 5 has been reversed to 5 4 3 2.

Breakage, choice A, in a gene can mess up its function entirely or lead to a translocation of genetic information. Choice B, deletion, is when a section of DNA is omitted or lost.

Choice C, Insertion, is when an extra base pair is added to a DNA sequence. Deletions and insertions can lead to a frameshift effect where entire sequences are thrown off because one nucleotide is wrong.

This could result in coding for the wrong amino acid and non-functioning proteins.

Therefore, the Correct Answer is D.

Q #1: How many tissue layers does the uterus have?

A. One

B. Two

C. Three

D. Four

Answer Explanation

The uterus has three layers. The inner layer is called the endometrium. The middle layer is called the myometrium. The outer layer of the uterus is called the serosa or perimetrium.
Q #2: Where is the gastrocnemius vein in relation to the femoral vein?

A. Lateral

B. Distal

C. Superior

D. Ventral

Answer Explanation

The gastrocnemius vein is found in the calf. The femoral vein is found in the proximal anterior thighs/pelvis.

Since the gastrocnemius vein is found below the femoral vein it is distal or inferior to the femoral vessel.
Q #3: Which of the following statements is FALSE?

A. An organelle is a specialized structure in a cell, such as a ribosome.

B. An organ is made up of similar tissues that perform the same function.

C. Organ systems are two or more organs performing similar functions.

D. A tissue contains a single cell type that works to perform a specific function.

Answer Explanation

A tissue contains a variety of cell types that work in conjunction to perform similar functions.

The cells are similar in structure despite being located throughout the body. There are four types of tissues in the human body: connective, epithelial, muscle, and nervous system tissues.

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What type of mutation is represented by the following sequence? Original: 123456 Mutated: 154326

More Questions on TEAS 7 Science

Q #1: How many tissue layers does the uterus have?

Answer Explanation

Q #2: Where is the gastrocnemius vein in relation to the femoral vein?

Answer Explanation

Q #3: Which of the following statements is FALSE?

Answer Explanation

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