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Biotechnology - 46

1-	In the meiotic cell divison in daughter cells are produced by two successive division in which
	A -	first division is equational, second is reductional
	B -	first division is reductional and second is equational
	C -	both divisions are reductional
	D -	both divisions are equational
2-	What is the approximate size (in kb) of the melon mitochondrial genome?
	A -	600 kilobase
	B -	1200 kilobase
	C -	2400 kilobase
	D -	3000 kilobase
3-	When an organism has a life cycle with alternation of generations, the haploid generation is the
	A -	zygote
	B -	gametophyte
	C -	gamete
	D -	sporophyte
4-	When do kinetochore microtubules pull chromosomes towards opposite spindle poles?
	A -	In anaphase A
	B -	In anaphase B
	C -	In metaphase
	D -	In telophase
5-	During meiosis crossing over takes place at
	A -	zygotene stage
	B -	diplotene stage
	C -	diakinesis stage
	D -	pachytene stage
6-	Which of the following transposable elements are not found in plants?
	A -	Ac
	B -	Tam3
	C -	L1
	D -	All are found
7-	A plasmid used to introduce BT toxin into a plant cell
	A -	carries an antibiotic resistance gene that makes the plant resistant to antibiotics
	B -	causes the plant to produce opines
	C -	is toxic for the plant cell
	D -	carries a bacterial gene with a plant promoter
8-	The homologous chromosomes follow the process of synopsis in the
	A -	leptotene
	B -	zygotene
	C -	pachytene
	D -	diplotene
9-	When F1 plants are crossed with homozygous recessive plants, it is known as
	A -	test cross
	B -	recessive cross
	C -	criss-cross
	D -	para-cross
10-	The shortest of mitotic phases is the
	A -	telophase
	B -	interphase
	C -	metaphase
	D -	anaphase

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