31. The minimum number of meiotic divisions required to obtain 100 pollen grain of wheat is.....
32. The minimum number of meiotic divisions required to obtain 100 pollen grain of wheat is.....
33. Significance of meiosis.........
A. The number of chromosomes is maintained in all cells.
B. It is important process for evolution
C. Due to division, cell can maintain their efficient size.
D. A very significant contributing of mitosis is cell repair
Answer : Option B
34. In which of the following matters mitosis and meiosis are similar ?
A. Both are precede by DNA replication
B. Both have pairing of homologous chromosomes
C. Both process occurs in all kinds of cells
D. Both include separation of paired chromosomes.
Answer : Option B
35. During which of the following phases of mitosis asters appear around the centroles ?
36. During which stage of meiosis crossing over takes place ?
37. At which of the following stage4s of cell cycle proteins and microtubules, required for mitosis, are synthesized ?
38. If the initial amout of DNA is denoted as 2C then it increases into :
A.During interphase, chromosomes are recognized as chromatin network.
R.Chromosomes are highly dispersed during this phase.
A. Both A and R are true and R is correct explanation of A.
B. Both A and R are true and R is not correct explanation of A
C. A is true and R is wrong
D. I is wrong and R is true
Answer : Option A
A. \(G_1\) phase is also called growth phase.
R.There is a lot of biosynthetic activity during
A. Both A and R are true and R is correct explanation of A.
B. Both A and R are true and R is not correct explanation of A
C. A is true and R is wrong
D. A is wrong and R is true
Answer : Option A