Each kidney contains about one million nephrons.

a. true
b. false


Ans: a. true

Biology & Microbiology

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A transfusion reaction primarily involves

A. leukocytes. B. phagocytes. C. platelets. D. erythrocytes.

Biology & Microbiology

What is the genotype of the tall plant that has red flowers and wide leaves?

In peas, tall (T) is dominant to short (t), red flowers (R) is dominant to white flowers (r), and wide leaves (W) is dominant to narrow leaves (w). A tall plant that has red flowers and wide leaves is crossed to a short plant that has white flowers and narrow leaves. The resulting progeny are shown in the table.



A) T R W / t r w
B) T R W / t r W
C) T R W / T R W
D) T R W / T r w
E) T r W / t R W

Biology & Microbiology

The first attempts at gene therapy began in 1990 with the treatment of a young girl with a genetic disorder abbreviated SCID. What does SCID stand for? In the context of SCID, what does ADA stand for?

What will be an ideal response?

Biology & Microbiology

Groups of related, but distinctly different genes that appear to have arisen from a single ancestral gene are referred to as

A. segmental duplications. B. expressed sequences. C. tandem clusters. D. pseudogenes. E. multigene families.

Biology & Microbiology