- 1(current)
Q. No.
The father and the mother of a child, with blood group O, have the blood groups A and B respectively. If these parents then have non-identical twins, what is the probability that both twins will have blood group B?
| 1. | ¼ | 2. | 1/8 |
| 3. | ¾ | 4. | 1/16 |
You cross pure line plants with red flowers and pure line plants with white flowers and all progeny plants had pink flowers. What would be the phenotypic ratio of progeny produced as a result of hybridizing two plants with pink flowers?
| 1. | All red offspring | 2. | 3 red: 1 white |
| 3. | 3 pink: 1 white | 4. | 1 red: 2 pink: 1 white |
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Match each item in Column I with one in Column II and select the correct answer from the codes given:
|
A |
Codominance |
P |
Progeny resembles both parents |
|
B |
Incomplete dominance |
Q |
Progeny does not resemble either of the parents |
|
C |
Sex determination in Drosophila |
R |
Haplo-diploidy |
|
D |
Sex determination in Honey bee |
S |
Genic balance |
Codes :
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | P | Q | S | R |
| 3. | Q | P | R | S |
| 4. | Q | P | S | R |
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The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because “O” in it refers to having:
| 1. | No anitgens A and B on RBCs |
| 2. | Other antigens besides A and B on RBCs |
| 3. | Overdominance of this type on the genes for A and B types |
| 4. | One antibody only - either anti-A or anti-B on the RBCs |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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- 1(current)
Q. No.
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