lecture 4- pedigree analysis

Question 1

probability

Answer 1

is the ratio of times a particular event is expected to happen to the number of trials during which the event could have happened

Question 2

product rule

Answer 2

the product states that the probability (P) of two independent events occurring simultaneously is the product of their individual probabilities

Question 3

sum rule

Answer 3

the probability of any of several mutually exclusive events occurring, is the sum of their individuals probabilities (non-simultaneous)

Question 4

dihybrid cross

Answer 4

SS- 1/4, Ss- 1/2, ss- 1/4

Question 5

F2 Progeny

Answer 5

can be classified as parental and non-parental or recombinant types

Question 6

parent type

Answer 6

have same alleles as the gametes that formed the F1

Question 7

recombinant type

Answer 7

have different combination of alleles from those in the gametes that formed the F1

Question 8

how to assess if a smooth yellow seed is SSYY, SsYy, or other

Answer 8

testcross!

Question 9

inheritance studies in humans

Answer 9

-many human traits and diseases are inherited but genetic analysis of these traits is difficult
- controlled mating in humans is unethical
- generating F2 progenies are not possible
- testcrosses are also unethical in humans