The hormone ________, produced by the pineal gland, may be involved in sleep-wake cycles in humans
Fill in the blank(s) with correct word
melatonin
Biology & Microbiology
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There are two types of myofilaments. Thin filaments primarily consist of two intertwining strands of a protein called ______________
a. actin
b. chromatins
c. lamins
d. tubulins
e. lamellae
Biology & Microbiology
The process of transcription takes place in the _____
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Haptens
A) are extremely large molecules. B) cannot be immunogenic even when attached to a larger substance. C) can attach to substances such as host serum lipids. D) act when attached to a larger carrier to trigger immune responses.
Biology & Microbiology
Which of the following cells do not kill cells directly?
A. T cells B. macrophages C. natural killer cells D. B cells E. neutrophils
Biology & Microbiology