Question

Question 18 1 pts The figure shows the effect of late-acting and early-acting deleterious mutations on survivorship curves. What do the differences in these curves mean for the evolution of senescence? A Late-acting mutation B Early-acting mutation C Comparison of survworship curves is decreased decreased from day 160 10 day 180 by Indviduels with 07 Time days Time days Click to view larger image. Selection acts more strongly on early-acting mutations, which are less likely to get eliminated from the population Selection acts more weakly on late-acting mutations, which are less likely to get eliminated from the population Selection acts more weakly on early-acting mutations, which are less likely to get eliminated from the population Selection acts more strongly on late-acting mutations, which are more likely to get eliminated from the population

Answer 1

18. Option B is correct as late-acting mutations will not be removed from gene pool because those individuals would have already reproduced and passed on their genes.

19. Option D is correct. Selection favors higher reproductive fitness.

20. Option B is correct as reproduction output falls later in life as cellular repair takes precedence.