The microbial biocontrol agent for butterfly caterpillar is
Bacillus thuringiensis
Sacchromyces
Lactobacillus
Cyanobacteria
Cyanobacteria
The first human-like hominid was called
Homo habilis
Homo erectus
Homo sapiens
Dryopithecus
Dryopithecus
Oparin and Haldane proposed
the theory of natural selection
that migration affects genetic equilibrium
that mutations caused speciation
that the first form of life could have come from preexisting non-living organic molecules
that the first form of life could have come from preexisting non-living organic molecules
D.
that the first form of life could have come from preexisting non-living organic molecules
Oparin proposed the idea of chemical evolution in 1923 and a similar idea was independently proposed by Haldane in 1928. The modern theory is, therefore, also known as oparin - Haldane theory.
Choose the wrong pair
Divergent evolution – Forelimbs of whales, bats, cheetah and human
Convergent evolution – Flippers of penguins and dolphins
Homologous structures – Vertebrate hearts
Analogous structures – Tendrils of Bougainvillea and Cucurbita
Analogous structures – Tendrils of Bougainvillea and Cucurbita
The moiety present at the 5' end of ribose sugar in a polynucleotide is
OH
CH2
Phosphate
Adenine
Adenine
An example for codominance
Eye colour in Drosophila
Seed shape and colour in pea plants
ABO blood group in man
Haemophilia in man
Haemophilia in man
The nuclear structure observed by Henkings in 50% of the insect sperm after spermatogenesis was
X body
Autosome
Y chromosome
Nucleolus
Nucleolus
Physical association of genes on a chromosome is called
Repulsion
Linkage
Aneuploidy
Duplication
Duplication
In the double-helical structure of DNA, the pitch of the helix is
3.4 nm
0.34 nm
6.6 nm
34 nm
34 nm