Biology Practice MCQ Page 26
Multiple Choice questions for Biology in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 2346 In animal cell mitotic apparatus is formed by
- only spindle fibers
- spindle fibers,aster and centrioles
- spindle fiberes and asters
- none of the above
Question: 2347 During the metaphase and anaphse stages of cell division,each chromosome comprises of two unseparated replicas known as the
- Chiasmata
- Plastids
- Chromatids
- Tetrads
Question: 2349 The special type of cell division in which diploid number(2n) of chromosomes is reduced to haploid (n)in the daughter cells known as
- Mitosis
- Meiosis
- Regeneration
- Reproduction
Question: 2352 The phase during which the homologous chromosomes exchange their segments by the formation of chiasmata is known as
- Leptotene
- Pachytene
- Diplotene
- Zygote
Question: 2354 Which is very important and lengthy phase of meiosis?
- Prophase 1
- Prophase 11
- Anaphase 1
- Anaphase 11
Question: 2356 During ------- stage,size of the nucleus increases due to condensation of chromation material.
- Prophase
- Anaphase
- Leptotene
- Interphase
Question: 2357 Chromosomes idential to each other on the basis of their morphology ,position centromere and other characteristics are known as
- Autosomes
- Sex chromosomes
- Homologous chromosomes
- Hetrozygous chromosomes
Question: 2359 The process of pairing of homologous chromosomes during the zygotene stage of meiosis is known as
- Crossing over
- Synapsis
- Karyokinesis
- Diakinesis
Question: 2361 Which chromosomes are identical to each other on the basis of their morphology ,position of centromere and other characteristics?
- Autosome chromosomes
- Sex chromosomes
- Heterozygous chromosomes
- Homologous chromosomes
Question: 2362 During which phase of Prophase 1 the size of nucleus increase and due to condensation of chromatic material ,the chromosomes become more apparent ,and distinct?
- Leptotene
- Zygotene
- Pachytene
- Diplotene
Question: 2363 At which stage of Prophase 1 paired homologous chromosomes repel each other and they being to separate?
- Leptotene
- Zygotene
- Pachytene
- Diplotene
Question: 2365 The sub-phase of Prophase I at which nucleoli disappear is known as
- Diakinesis
- Diplotene
- Pachytene
- Diplotene
Answers to the questions of Biology on this page
Following list gives the correct choice for the answer of the Biology mcqs.
2346 . B
2347 . C
2349 . B
2352 . B
2354 . A
2356 . C
2357 . C
2359 . B
2361 . D
2362 . A
2363 . C
2365 . A
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