List of top Biology Questions asked in KCET, JIPMER

In one of the hybridisation experiments, a homozygous dominant parent and a homozygous recessive parent are crossed for a trait. (Plant shows Mendelian inheritance pattern)

Four students were assigned a science project to find out the pollution levels of lakes in their surrounding. After analysing the quality of water samples, the BOD values were found as follows :
Which among the following water samples is highly polluted ?

Consider the following statements with reference to female reproductive system :
Statement 1 : The presence or absence of hymen is not a reliable indicator of virginity or sexual experience.
Statement 2 : The sex of the foetus is determined by the father not by the mother.
Choose the correct option from the following :

Match the column-I with column-II and choose the correct option from the following :

Column-I (Plant groups)		Column-II (Examples)
1.	Bryophyta	p.	Pinus
2.	Gymnosperm	q.	Adiantum
3.	Algae	r.	Sphagnum
4.	Pteridophyta	s.	Ectocarpus

In a population of 800 rabbits showing Hardy-Weinberg equilibrium, the frequency of recessive individuals was 0.16. What is the frequency of heterozygous individuals?

Considering the stroke volume of an adult healthy human being is 70 mL, identify the cardiac output in one hour from the following :

The Lac-Operon model was elucidated by

Which of these is NOT an example for Adaptive radiation?

From the following tools / techniques of genetic engineering, identify those which are required for cloning a bacterial gene in animal cells and choose the correct option :

I.	Endonuclease	II.	Ligase
III.	tumefaciens	IV.	Microinjection
V.	Gene gun	VI.	Lysozyme
VII.	Cellulase	VIII.	Electrophoresis

A flower has 10 stamens each having bilobed dithecous anther. If each microsporangium has 5 pollen mother cells, how many pollen grains would be produced by the flower ?

'Gene-mapping' technology was developed by

Identify the symptoms of pneumonia.

Identify the incorrect statement regarding the flow of energy between various components of the food chain.

Find the correct statement.
(1) Generally a gene regulates a trait, but sometimes one gene has effect on multiple traits.
(2) The trait AB-blood group of man is regulated by one dominant allele and another recessive allele. Hence it is co-dominant.

The vibrations from the ear drum are transmitted through ear ossicles to

In the female reproductive system, a tiny finger like structure which lies at he upper junction of the two labia minora above the urethral opening is called

PCR is used for

The complex formed by a pair of synapsed homologous chromosomes is called,

Select the correctly matched pair of organisms with their order.

From the following table, select the option that correctly characterizes various phases of menstrual cycle :

	Menstruation phase	Follicular phase	Luteal phase
(1)	Regeneration of endometrium	High level of progesterone	Developing corpus luteum
(2)	Matured follicle	Regression of corpus luteum	Ovulation
(3)	Menses	Developing corpus luteum	Follicle maturation
(4)	Menses	L.H. Surge	Regeneration of endometrium

Eukaryotic genes are monocistronic but they are split genes because

Histone proteins are positively charged because they are rich in basic amino acid residues

Match Column-I with Column-II. Select the option with correct combination.

Column-I		Column-II
1.	Standing state	p.	Mass of living material at a given time.
2.	Pioneer species	q.	Amount of nutrients in the soil at a given time.
3.	Detritivores	r.	Species that invade a bare area.
4.	Standing crop	s.	Breakdown detritus into smaller particles.

Roquefort cheese is ripened by

With reference to human sperm, match the List-I with List-II.

List-I		List-II
1.	Head	p.	Filled with enzyme
2.	Acrosome	q.	Contains mitochondria
3.	Middle piece	r.	Sperm motility
4.	Tail	s.	Contains haploid nucleus

Choose the correct option from the following :