Short sequences of nucleotides (typically 4 to 8 bases) that are repeated a variable number of times at a locus are known as ________. [three words]
Fill in the blank(s) with correct word
short tandem repeats (STRs)
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What do the letters D-N-A stand for?
A. Dioxyribonuclear acid B. Deoxyribonucleic acid C. Deoxyrobonuclear acid D. Dioxyribonucleic acid
Archaeopteryx
a. is an example of a “missing link.” b. had teeth. c. had feathers. d. had a long bony tail. e. all of the above are true.
The major function of a receptor is to
a. control the autonomic functions of the body. b. stabilize the internal environment to achieve homeostasis. c. produce responses to the various stimuli the body receives. d. give organisms or cells awareness of and sensitivity to their environment. e. do none of these.
About how long have modern humans existed?
A) 25,000 years B) 250,000 years C) 2,500,000 years D) 25,000,000 years