Treatment Resistant STI Quiz 2

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

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

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

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

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

A   subject to disruptive selection.

B   not a heritable trait.

C   subject to stabilizing selection. 

D   a strong predictor of adult weight.

E   subject to directional selection.

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

B   The similarities are probably due to random chance.

C   Parallel evolution is common among aquatic mammals.

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

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

A   very different proteins

B   very different DNA

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

D   very similar DNA 

A   that confer a reproductive advantage.

B   that reduce mortality.

C   that are heritable. 

D   that are acquired in an individual’s lifetime.

E   that are adaptive.

A   uniformity.

B   organisms that are stronger.

C   more intricate adaptations.

D   organisms that are perfectly adapted to their environments

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 causes no change in the genetic variability within a population because it is a case of artificial selection.

C  Only choices a) and c) are correct.

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

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

A   the mutation rate must be low.

B   it must have a small population size.

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

D   its members must possess inheritable variation. 

E   it must be in an unstable environment.

A   STIs can only be transmitted through sexual intercourse. 

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

C   Genital herpes can be treated and cured with antibiotics.

D   Nearly all STIs have severe and obvious ongoing symptoms.

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

A   none of these is correct

B   testosterone; menstruation

C   testosterone; ovulation 

D   sperm; ovulation

E   sperm; menstruation

A   vagina; oviduct 

B   uterus; ovary

C   cervix; uterus

D   vagina; uterus

E   uterus; oviduct

A   seminal vesicles 

B   urethra

C   bulbourethral glands 

D   prostate 

E   epididymis

A   gastrulation

B   blastulation 

C   organogenesis

D   fertilization

A   None – all of these are advantages.

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

C   The offspring of sexual reproduction are genetically different.

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