Question # 1

Which pair of chromosome fails to segregate in down's syndrome.

Choose an answer

7th

15th

19th

21st

Microtubule are composed of

Choose an answer

Myosin

Troponin

Actin

Tubulin

Unequal separation of chromosomes is called.

Choose an answer

Disjunction

Separation

Non disjunction

Metastasis

Fertilization of the ovum normal occurs:

Choose an answer

In the upper thrid of the oviduct

In the lower thrid of the oviduct

In the uterus

Can take place succcessfully in vegina

Full cell cycle in yeast cells has length of.

Choose an answer

30 minutes

60 minutes

90 minutes

124 minutes

Three sets of microtubules (fibres) originate from each pair of

Choose an answer

Glyoxisomes

Iysosomes

Peroxisomes

Centrioless

The prophase stage in which the chromosomes become visible, shorten and thick.

Choose an answer

Leptotene

Zygotene

Pachytene

Diphotene

The chromatids repel each other during.

Choose an answer

Leptotene

Zygotene

diplotene

Pachytene

The chances of teenage mother having down's syndrome child is.

Choose an answer

One in one hundred

One in many thousand

One in one thousand

One in ten thousand

The stage of prophase that last for days, week or even year is.

Choose an answer

Leptotene

Zygotene

Pachytene

Diplotene

The average cell cycle in human is.

Choose an answer

24 hours

26 hours

28 hours

30 hours

Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid

Choose an answer

Cell membrane

Capsule

Sheath

Cell wall

All are related to Turner's syndrome except.

Choose an answer

Short stature

Webbed Neck

Broad face

Without Ovaries

Pairing of homologous chromosomes for tetrad formation starts at.

Choose an answer

Leptotene

Zygotene

Diplotene

Pachytene

Apoptosis is.

Choose an answer

Division of cells

Death of cells by tissue damage

suicide of cells

Weakness of cells

Crossing over occurs during.

Choose an answer

Leptotene

Pachytene

Zygotene

Anaphase

The pairing of homologous chromosomes is completed in

Choose an answer

Leptotene

Zygotene

Pachytene

Diplotene

The number of sets of microtubules originate from each pair of centriole is.

Choose an answer

03

04

05

06

More Classes

Other Links

Biology FSC Part 2 Chapter 21 Online MCQ's Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer