When a population is made up of individuals
who are genetically identical, each individual
is said to be a ____ of other individuals.
a. homolog
b. clone
c. twin
d. recombinant
e. probe
B
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Like mitochondria, the inner membranes of chloroplasts are highly convoluted so as to greatly increase surface area
A. true B. false
Which hormone has a role in both feelings of well-being and in social stress responses in both sexes?
a. oxytocin b. endorphins c. insulin-like growth factors d. epinephrine e. norepinephrine
How many different codons in our genetic code specify amino acids?
a. 3 b. 20 c. 60 d. 61 e. 64
Refer to Figure 24-1d. The function of the structure labeled 3 is:
a. attachment to a host cell.
b. locomotion.
c. mate recognition.
d. replication.
e. to take over host cell mechanisms