141.
Meiosis which occur at the time of spore formation is called A
Zygotic meiosis
B
Haplontic meiosis
C
Terminal meiosis
D
Intermediate meiosis
Answer :
Zygotic meiosis
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Meiosis occurs at the time of formation of spores where the spores are formed from the zygote and spore mother cells.
142.
If the number of bivalents are 8 in metaphase - I what shall be the number of chromosomes in daughter cell after meiosis - I and meiosis -Ii respectively A
8 and 4
B
4 and 4
C
8 and 8
D
16 and 8
Answer :
8 and 8
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143.
The most primitive type of mitosis is A
Amitosis
B
Cryptomitosis
C
Endomitosis
D
Zygotic mitosis
Answer :
Cryptomitosis
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144.
Shape of chromosome is determined by A
Telomere
B
Centromere
C
Chromomere
D
Centrosome
Answer :
Centromere
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145.
Which of the following is not a characteristic feature during mitosis in somatic cells ? A
Spindle fibres
B
Disappearance of nucleolus
C
Chromosome movement
D
Synapsis
Answer :
Synapsis
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146.
Which of the following statement is correct A
DNA is synthesized through out the cell -cycle
B
Cell divisionis inhibited by cytokinin
C
Chromosome arecondensed at S- stage
D
Only extra chromosomal DNA is replicated at any stage of cell cycle
Answer :
Only extra chromosomal DNA is replicated at any stage of cell cycle
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147.
Thick-thread stage occurred in A
Leptotene
B
Zygotene
C
Pachytene
D
Diplotene
Answer :
Pachytene
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148.
Genetic information is transferred from zygote to all body cell by A
Meiosis
B
Amitosis
C
Endomitosis
D
Mitosis
Answer :
Mitosis
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149.
At Anaphase - II of meiosis each chromosome contains A
4 DNA
B
3-DNA
C
2-DNA
D
1-DNA
Answer :
1-DNA
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At Anaphase II, the remaining centromeric cohesin is cleaved allowing the sister chromatids to segregate.
150.
In cell cycle, DNA replication takes place in A
$$G1$$ phase
B
$$G2$$ phase
C
Mitotic metaphase
D
$$S$$ phase
Answer :
$$S$$ phase
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