Which of the following is considered as primary egg membrane?
| 1. | Corona radiata in humans |
| 2. | Theca layer in humans |
| 3. | Vitelline membrane in frog |
| 4. | Chorion around the egg of insect |
In case of frog, after the completion of second cleavage
| 1. | Four blastomeres are formed |
| 2. | Two micromeres and two megameres are formed |
| 3. | Stereoblastula is formed |
| 4. | Discoblastula is formed |
Daughter cells formed after second cleavage in frog are termed as
| 1. | Micromeres | 2. | Megameres |
| 3. | Micromeres and megameres | 4. | Blastomeres |
All the following statements are correct about cleavage divisions, but one is wrong. Which one is wrong?
1. The quantity and also the distribution of yolk in cytoplasm determines the type of cleavage
2. ln mammalian ovum the type of cleavage is simple holoblastic
3. ln mammals during cleavage there is a transitory three celled stage
4. Meroblastic cleavage occurs in frog
Which structure is not related with respiration in frog?
1. Lungs
2. Skin
3. Buccal cavity
4. Diaphragm
In the following questions, a statement of assertion (A) is followed by a statement of the reason (R)
| Assertion(A): | In the frog's tadpole, if the thyroid gland is removed surgically, metamorphosis stops. |
| Reason(R): | TSH is not secreted. |
| 1. | If both Assertion & Reason are true and the reason is the correct explanation of the assertion. |
| 2. | If both Assertion & Reason are true but the reason is not the correct explanation of the assertion. |
| 3. | If Assertion is a true statement but Reason is false. |
| 4. | If both Assertion and Reason are false statements. |
Choose the correct statement for the digestive system of frog :
| 1. | Oesophagus is very long |
| 2. | Food is captured by the bilobed tongue |
| 3. | The intestine is divisible into two parts only i.e. duodenum and rectum |
| 4. | Both (2) and (3) |
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