CAN YOU PLEASE ANSWER 2 AND 3 :) THANK YOU
QUESTION 1 Use the information below to answer questions 1-3. Northern burrowing bugs feed on small arthropods that they search for under the bark of trees. These bugs vary considerably in the width of the pronotum; male bugs show greater variability than do females. Using light traps, you collect all of the bugs in the area, sort them by sex, and measure their pronotum width. By using a male-specific genetic markers you are able to determine which male is the father of each male offspring. The males do not associate with the females after they have mated; therefore any resemblance between males and their offspring is due only to geneticsânot environment. The phenotypic variance of the males is 175.2, while the phenotypic variance of the offspring is somewhat lessâ146.1. The covariance in snout length between males and their offspring is 14.6. What is the heritability of pronotum width?
a) 0.083 b) 0.100 c) 0.167 d) 0.335 e) 0.500
QUESTION 2 Northern burrowing bugs shelter from cold weather in deep crevices in tree bark. Bugs who do not find shelter will not survive sever cold weather. During your study, a period of subfreezing temperatures caused all bugs that were not small enough to tunnel into crevices in the bark to die. Because of this, only those bugs with a pronotum width that averaged 12 mm narrower than the population mean to survive. Relative to the original population, how much will pronotum width differ in the next generation (young born after the severe cold period)?
a) 2.0 mm b) 3.0 mm c) 6.0 mm d) 12.0 mm e) You do not have enough data to tell
QUESTION 3 In Question 2, what type of selection is operating on pronotum width?
a) directional selection for a wider pronotum b) directional selection for a narrower pronotum c) stabilizing selection d) disruptive selection
CAN YOU PLEASE ANSWER 2 AND 3 :) THANK YOU
QUESTION 1 Use the information below to answer questions 1-3. Northern burrowing bugs feed on small arthropods that they search for under the bark of trees. These bugs vary considerably in the width of the pronotum; male bugs show greater variability than do females. Using light traps, you collect all of the bugs in the area, sort them by sex, and measure their pronotum width. By using a male-specific genetic markers you are able to determine which male is the father of each male offspring. The males do not associate with the females after they have mated; therefore any resemblance between males and their offspring is due only to geneticsânot environment. The phenotypic variance of the males is 175.2, while the phenotypic variance of the offspring is somewhat lessâ146.1. The covariance in snout length between males and their offspring is 14.6. What is the heritability of pronotum width?
a) 0.083 b) 0.100 c) 0.167 d) 0.335 e) 0.500
QUESTION 2 Northern burrowing bugs shelter from cold weather in deep crevices in tree bark. Bugs who do not find shelter will not survive sever cold weather. During your study, a period of subfreezing temperatures caused all bugs that were not small enough to tunnel into crevices in the bark to die. Because of this, only those bugs with a pronotum width that averaged 12 mm narrower than the population mean to survive. Relative to the original population, how much will pronotum width differ in the next generation (young born after the severe cold period)?
a) 2.0 mm b) 3.0 mm c) 6.0 mm d) 12.0 mm e) You do not have enough data to tell
QUESTION 3 In Question 2, what type of selection is operating on pronotum width?
a) directional selection for a wider pronotum b) directional selection for a narrower pronotum c) stabilizing selection d) disruptive selection
