MCQ muscle skeletal dna

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Which of the following muscle types are striated and voluntary?

(a) Cardiac muscle

(b) Skeletal and smooth muscle

(c) Skeletal muscle (correct)

(d) Smooth muscle

When a muscle is at rest, it is not completely relaxed but is in a state of partial contraction. This is referred to as;

(a) flexion.

(b) muscle fatigue.

(c) muscle tone. (correct)

(d) muscle protraction.

Muscles work in pairs known as

(a) synergistic pairs.

(b) stabilising pairs.

agonistic pairs

antagonistic pairs (correct)

The functions of the muscular system include all the following except;

(b) protect internal organs. Signup and view all the answers

Muscle tissue that shows a lack of striations is known as;

(a) smooth muscle. Signup and view all the answers

Which of the following describes the importance of a synergist in muscle movement?

(c) Ensures that only one movement can occur at a time Signup and view all the answers

The type of joint found where the humerus meets the ulna is best identified as a

hinge joint Signup and view all the answers

Which of the following statements about muscles is true?

(b) muscles join to bones by tendons Signup and view all the answers

spongy bone:

(c) contains red bone marrow. Signup and view all the answers

The enzyme that is used to unwind DNA during DNA replication is known as

dna helicase Signup and view all the answers

DNA bound to proteins and found in the nucleus, in between cell divisions, is referred to as

chromatin Signup and view all the answers

Which of the following statements is correct?

(a) A gene is a section of DNA. Signup and view all the answers

Histone modification and DNA methylation

(a) modify gene expression. Signup and view all the answers

A certain abnormality in cell membranes renders the cell unable to take up amino acids from their external environment. How would this condition impact gene expression in affected cells?

(c) tRNA molecules would not be able to locate their partner amino acid for translation. Signup and view all the answers

MCQ muscle skeletal dna

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