MCQ
Pattern of cleavage in frog's egg is:
- AHoloblastic
- BHoloblastic and unequal
- CHoloblastic and equal
- DAll of the above
✓
Answer
- Holoblastic and unequal
Explanation:
In frog, fertilisation is external and takes place in water.
Zygote undergoes cleavage and develops into morula and blastula.
The cleavage is holoblastic and unequal.
Holoblastic cleavage means there is total cleavage and it is alsocalled complete cleavage.
It occurs in the eggs which do not have much yolk sac.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Hugo de Vries's experimental organism was
Which of the following is/are primate(s)?
Choose the correct option about agrochemicals.
Which of the following is a parasitic animal?
Match following columns :
→| Column $- I$ | Column $- II$ |
| $(a)$ Endometrium | $(p)$ The most external layer |
| $(b)$ Myometrium | $(q)$ Help in collection of the ovum after ovulation |
| $(c)$ Fimbriae | $(r)$ Fertilised ovum is installed here |
| $(d)$ Perimetrium | $(s)$ Thick layer of smooth muscle |
Which type of animals first evolved from lobefins
Person having genotype IA IB would show the blood group as AB. This is because of.
The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as:
Mesozoic era is associated with mass extinction of: