List of top Biology Questions asked in KCET

The technology of biogas production was developed in India due to the efforts of

Which among the following plants is a source of drug which is native to America ?

Identify the techniques useful in detecting the cancers of internal organs.

Which is the most feared property of malignant tumors ?

The development of quick immune response in a person infected with deadly microbes by administering preformed antibodies is

Pneumonia is caused by

If the sequence of nucleotides in a template stand of DNA is 3-'ATGCTTCCGAAT-5'. Write the sequence in the corresponding region of the transcribed m-RNA.

Experiments involving use of radioactive thymidine to detect distribution of newly synthesized DNA in the chromosome was performed on which plant ?

E. Coli fully labelled with ¹⁵N is allowed to grow in ¹⁴N medium. The two strands of DNA molecule of the first generation bacteria have

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

Match the scientists of Column I with their contributions in Column II :

Column I		Column II
i.	Griffith	p.	Lac operon
ii.	Jacob & Monad	q.	DNA is the genetic material
iii.	Meselson & Stahl	r.	Transforming principle
iv.	Hershey and Chase	s.	DNA replicates semi-conservatively

Which among the following characters selected by the Mendel in a pea plant is a recessive character ?

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

What is the possible blood group of children whose parents are heterozygous for A & B blood groups ?

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?

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

The method of directly injecting a sperm into ovum is called

Select the incorrect statement about contraceptives.

Under the influence of oxytocin which layer of the uterus exhibits strong contractions during parturition ?

Select the correct path of flow of milk during breast feeding.

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

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

Identify the correct statement.

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.