Biology - Mock Test 133

Question 1321

Cell plate grows from ?

A) One wall to another B) Centre to wall C) Wall to centre D) Simultaneously

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Question 1322

Balbiani rings occur in ?

A) Autosome B) Heterosome C) Lampbrush chromosome D) Polytene chromosome

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Question 1323

Protein subunit found within microtubules is ?

A) Collagen B) Tubulin C) Myosin D) DNA

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Question 1324

Chiasmata are first seen in ?

A) Pachytene B) Zygotene C) Leptotene D) Diplotene

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Question 1325

The stage in which daughter chromosomes move toward the poles of the spindle is ?

A) Anaphase B) Metaphase C) Prophase D) Telophase

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Question 1326

A change in the amount of yolk and its distribution in the egg will affect?

A) Fertilization B) Formation of zygote C) Pattern of cleavage D) Number of blastomeres produced

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Question 1327

A bivalent consists of ?

A) Two chromatids and one centromere B) Four chromatids and two centromeres C) Two chromatids and two centromeres D) Four chromatids and four centromeres

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Question 1328

During oogenesis the cell that is fertilized by a sperm to become an egg is ?

A) primary spermatocyte B) secondary oocyte C) primary oocyte D) secondary spermatocyte

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Question 1329

______ are devoid of respiratory, excretory and circulatory organs?

A) Threadworms B) Sponges C) Tapeworms D) Liver fluke

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Question 1330

Which one of the followings in birds indicates their reptilian ancestry?

A) Eggs with a calcareous shell B) Scales on their hind limbs C) Four-chambered heart D) Two special chambers crop and gizzard in their digestive tract

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