Human somatic cells have ____________ pairs of chromosomes. Two chromosomes that carry the same genes are called a _______________ pair.
Fill in the blank(s) with correct word
Ans: 23;Homologous
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Which of the following cells is part of the body's second line of defense?
a) Mucous cells b) Germ cells c) B and T Lymphocytes d) Natural killer cells e) None of these choices
Which of the following are involved directly in pulmonary circulation?
A) superior vena cava, right atrium, and left ventricle B) right ventricle, pulmonary artery, and left atrium C) left ventricle, aorta, and inferior vena cava D) right atrium, aorta, and left ventricle
If the supply of blood cells is deficient, yellow marrow may change into red marrow
Indicate whether the statement is true or false
What does label C represent?
A) disulfide bond
B) variable segment
C) light chain
D) heavy chain
E) constant segments of light and heavy chains