#Question id: 3591
#Unit 8. Inheritance Biology
Consider three yellow, round peas, labeled A, B, and C. Each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. Exactly 100 peas issuing from each cross were sorted into phenotypic classes as follows
A: 51 yellow, round
49 green, round
B: 100 yellow, round
C: 24 yellow, round
26 yellow, wrinkled
25 green, round
25 green, wrinkled
What were the genotypes of A, B, and C respectively?
#Question id: 3592
#Unit 8. Inheritance Biology
In garden peas, tall (T) is dominant to short (t), Purple Flowers are (P) dominant to white flowers (p), Axial flowers (A) are dominant to terminal flowers (a), and yellow seeds (G) are dominant to green seeds (g). An individual from a true breeding line of tall, purple flowered, axial-flowered, yellow seeded pea plants is mated to an individual from a true breeding line of short, white flowered, terminal-flowered, green-seeded plants. The F1 are allowed to self-fertilize and produce an F2. What proportion of the F2 is expected to exhibit purple flowers and yellow seeds?
#Question id: 3593
#Unit 8. Inheritance Biology
In the cross Aa Bb Cc Dd X Aa Bb Cc Dd, in which all genes undergo independent assortment, what proportion of offspring are expected to be at least one heterozygous for locus gene?
#Question id: 3594
#Unit 8. Inheritance Biology
following different cross allowed and their respective phenotype.
|
Character |
Male genotype |
Female genotype |
Progeny phenotype |
|
M |
Aa |
Aa |
3:1 |
|
N |
Aa |
aa |
1:1 |
|
O |
Aa |
AA |
1:1 |
|
P |
Aa |
AA |
1 |
Which of the following observation conclude correct mode of dominance?
#Question id: 3595
#Unit 8. Inheritance Biology
Ranch mink with the dark gray coat color known as Aleutian is homozygous recessive aa. Genotypes AA and Aa have the standard deep brown color. A mating of Aa X Aa produces four pups. What is the probability of a perfect 3 : 1 distribution of standard to Aleutian?
#Question id: 3596
#Unit 8. Inheritance Biology
Which of the following correct regarding test cross?
a) A testcross tests reveals the genotype of the individual
b) Test cross detect linkage between gene
c) Same genotype and phenotype ratio present in test cross progeny
d) Phenotype ratio of test cross used to determine mode of inheritance either complete dominance or incomplete dominance