List of top Biology Questions asked in KCET

Population size keeps changing depending on different factor/s such as

In which region of the t-RNA molecule is the amino-acid binding site located ?

Which of the following aquatic plant does not show pollination by water ?

The genotype of a husband and wife are I^AI^B & I^AI^O. Among the blood types of their children, how many different genotypes & phenotypes are possible?

Epigynous flower is one in which

In the given diagram of human sperm, identify the functions of the labelled parts a,b and c.

Which is the most feared property of malignant tumors ?

Match the location of the cell given in Column I with its function in Column II.

Column I		Column II
1.	Mitochondrial matrix	p.	Kreb's cycle
2.	Cytoplasm	q.	ETC
3.	F0 and F1	r.	Glycolysis
4.	Inner mitochondrial membrane	s.	ATP synthesis

Which cell of the female gameophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?

Match the compounds of Column I with their functions in Column II.

Column I		Column II
1.	Trypsin	p.	Fights infectious agents
2.	GLUT - 4	q.	Is an intercellular ground substance
3.	Collagen	r.	Works as an enzyme
4.	Antibody	s.	Enables glucose transport into cells

How many microsporangia are located at the corners of a typical bilobed anther of angiosperm ?

Consider the following statements & choose the correct answer from the given options.
Statement 1: Innermost layer of microsporangium is tapetum.
Statement 2: Cells of tapetum possess dense cytoplasm more than one nucleus and nourishes developing pollen grains.

Identify the correct statement/s about ex situ conservation.
Advanced ex situ conservation includes
i. Cryopreservation of gametes.
ii. Plant tissue culture method.
iii. Seed bank.
iv. In vitro fertilisation.

In a standard ECG, one of the following functions of its components is not correctly interpreted.

Match the Column I with Column II :

Column I		Column II
i.	Autosomal trisomy	p.	Turner's Syndrome
ii.	Allosomal trisomy	q.	Mendelian disorder
iii.	Allosomal Monosomy	r.	Klinefelter's Syndrome
iv.	Cystic fibrosis	s.	Down's Syndrome

Rapid antigen test and RT-PCR are the two diagnosis test for Covid-19 virus. PCR, a molecular diagnostic, tool stands for

Identify the correct statement/s regarding class aves.
1. Forelimbs are modified into wings and hindlimbs are modified for walking and swimming.
2. Heart is completely four-chambered.
3. They are homeotherms.
4. They are oviparous and development is direct.

In Bryophytes & Pteridophytes the number of male gametes produced is several thousand times the numbe of female gametes produced.
Reason : Large number of male gametes fail to reach the female gametes during transport.

α - 1 antitrypsin is

In the given diagram identify the parts labelled as a,b,c and d.

Match Column I with Column II and find the correct answer :

Column I		Column II
1.	Aneuploidy	p.	Increase in whole set of chromosomes
2.	Monoploidy	q.	Loss or gain of a chromosome
3.	Polyploidy	r.	Two sets of chromosomes
4.	Diploidy	s.	A single set of chromosomes

Identify the odd one out.

Choose the correct statement regarding the GIFT (Gamete Intrafallopian Tube Transfer) procedure.

Identify the correct order of events in pollen-pistil interaction from the options given below I.Release of male gametes into the embryo sac. II.Deposition of pollen grains on stigma III.Entry of pollen tube into embryo sac. IV.Development of pollen tube V.Entry of pollen tube into the ovule,

During Citric Acid cycle, the various organic acid undergo decarboxylation. Which of the following organic acids of the above cycle have $4C$, $5C$ and $6C$ respectively?