DSI CHAPTER 5 321

PERMAINAN MENARIK UNTUK BELAJAR POPULATION GENETIK

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POPULATION GENETICS SB015

In population of 1000 dragonfly, 80% alelles are dominant.What is the frequency of recessive alelle? ______________

0.2

0.4

0.2

0.8

In population of 250 rats,the recessive alelle frequency of short fur is 0.25.What is the dominant alelle frequency in the next generation if the population is consider to be in genetic equilibrium? _____________

0.45

0.75

0.75

0.25

POPULATION GENETICS SB015

In a rat population that is in equilibrium,the frequency of recessive white fur alelle is 0.25.Calculate the frequency of heterozygous rats. _____________

0.375

0.275

0.25

0.375

Frequency of heterozygous

p + q = 1, p is? ________________________________

Frequency of dominant alelle

Frequency of dominant alelle

Frequency of recessive alelle

q²

Which of the following represent heterozygous frequency ? ________________

p²

2pq

2pq

0.42

In a 1200 students in KMS, with genotype RR = 600, Rr = 300 and rr =100. Calculate the frequency of individuals that carries one recessive allele. ________________

0.21

0.21

0.33

POPULATION GENETICS SB015

The frequency of homozygous recessive is 0.5. What is the frequency of the recessive allele? ________________

0.71

0.84

0.25

0.71

In a population of 1000 dragonfly with genotype GG = 500, Gg = 400 and gg = 100. Calculate the frequency of recessive allele, g. _______________

0.03

0.3

0.2

0.3

POPULATION GENETICS SB015

No offspring

Which of the following is NOT a condition for Hardy-Weinberg Equilibrium? _______________________

No natural selection

No offspring

No mutations

No mutation occurs

Which of the following is not an assumption of Hardy-Weinberg equilibrium? ________________________

The population is small.

Mating is random

The population is small.

1.0

If the frequency of the dominant allele (p) is 0.6, what is the frequency of the recessive allele (q)? ______________

0.36

0.4

0.4

In a population in Hardy-Weinberg equilibrium, 16% of the individuals express a recessive trait. What is the frequency of the recessive allele (q)? ___________

0.84

0.4

0.16

0.4

POPULATION GENETICS SB015

For sheep,normal fur is controlled by a dominant allele (R) while non-uniform controlled by a recessive allele (r). In a population of 2000 sheeps that mate randomly is found that 500 sheeps have non-uniform fur. Calculate the frequency of recessive allele. ___________________

0.5

0.3

0.6

0.5

In a population of 1200 students in a college, only 200 students have dimple. Having dimple is a dominant trait. Assuming the population is in genetic equilibrium. Calculate the number of students who are heterozygous for this trait __________________

150

190

210

190

POPULATION GENETICS SB015

Gene pool

The sum total of all genes in a population is known as the _____________

Genetic equilibrium

Gene pool

Gene frequency

p + q = 2pq

Which of the following is Hardy-Weinberg equation ? _______________________

p² + 2pq + q² = 1

p² + 2pq + q² = 1

p + 2pq² + q =1

In a population of 2400 cats, only 120 have curly tailed which is recessive trait. Assuming the population is in a genetic equilibrium. Determine the number of heterozygous cats. ______________

490

522

823

823

0.04

64% of the population has the recessive phenotype. What is the allele frequency for p? _______________

0.20

0.32

0.20