Treatment Resistant STI Quiz 2

A   It takes decades or longer for organisms to evolve by natural selection.

B   Bacteria can mutate in order to be immune to antibiotics.

C   Humans have provided the selection pressure that results in more harmful strains of bacteria. 

D   Bacteria are becoming resistant to antibiotics much more slowly than humans can invent new antibiotics.

E   Resistance alleles in the bacterial populations in the human body are in Hardy-Weinberg equilibrium.

A   subject to disruptive selection.

B   a strong predictor of adult weight.

C   not a heritable trait.

D   subject to stabilizing selection. 

E   subject to directional selection.

A   Parallel evolution is common among aquatic mammals.

B   The basic shapes of fish, penguins, and dolphins are vestigial structures.

C   The similarities are probably due to random chance.

D   Fish, penguins, and dolphins all faced the same physical constraints during their evolution and converged upon the same body plan. 

E   Divergent evolution and adaptive radiation into new niches often result in convergent evolution.

A   very different DNA

B   none of these, their is no relationship between DNA and relatedness

C   very different proteins

D   very similar DNA 

A   that confer a reproductive advantage.

B   that are adaptive.

C   that reduce mortality.

D   that are heritable. 

E   that are acquired in an individual’s lifetime.

A   more intricate adaptations.

B   organisms that are perfectly adapted to their environments

C   organisms that are stronger.

D   uniformity.

E   None of the above is correct. 

A  Migration of individuals into a population generally causes that population to diverge to the extent that it becomes a new species.

B  Migration of individuals into a population generally increases the genetic variability within a population.

C  Only choices a) and c) are correct.

D  Migration of individuals into a population generally causes no change in the genetic variability within a population because it is a case of artificial selection.

E  Migration of individuals into a population generally decreases the genetic variability within a population.

A   the mutation rate must be low.

B   its members must possess inheritable variation. 

C   it must be in an unstable environment.

D   individuals must be migrating in and out of the population.

E   it must have a small population size.

A   STIs are annoying and uncomfortable but they are never fatal.

B   Nearly all STIs have severe and obvious ongoing symptoms.

C   Genital herpes can be treated and cured with antibiotics.

D   STIs can only be transmitted through sexual intercourse. 

E   STIs can be transmitted through the mouth or the anus.

A   sperm; ovulation

B   sperm; menstruation

C   testosterone; ovulation 

D   testosterone; menstruation

E   none of these is correct

A   uterus; oviduct

B   vagina; uterus

C   uterus; ovary

D   vagina; oviduct 

E   cervix; uterus

A   seminal vesicles 

B   bulbourethral glands 

C   urethra

D   epididymis

E   prostate 

A   fertilization

B   organogenesis

C   blastulation 

D   gastrulation

A   Finding a mate can consume lots of energy and time. 

B   The offspring are better suited to survival in a changing environment.

C   None – all of these are advantages.

D   The offspring of sexual reproduction are genetically different.