41.

In protein synthesis the base sequence of mRNA determines the primary structure of polypeptide chain because

• it determine the sequence of alignment of amino acid charged tRNA molecule

• there is one to one coding relationship between each base on mRNA and amino acid

• each amino acid is defined by a pair of base on mRNA

• amino acid molecule align directly on the polynucleotide on mRNA

What do you mean to the mutation in which replacement of a nucleotide occur by another similar type?

• Inversion

• Transition substitution

• Transversion substitution

• Insertion frame- shift

Which of the following assumption is not belonging to Hardy-Weinberg principle?

• The population size is very large

• Random mating is occurring

• Natural selection takes place

• No mutation occurs

Which of the following rule states that Avian and mammalian forms are generally of higher size in colder region as compared to warmer region'?

• Bergmann's rule

• Allen rule

• Gloger rule

• Hardy-Weinberg rule

Abzymes are

• catalytic antibodies

• neutral antibodies

• non-specific antibodies

• defermed antibodies

Population means

• all the animals of a place

• all the animals and plants found in an area

• human beings in an area

• animal/plants of a species living in a specific area

Parthenogene embryos in plants are those which are formed by

• unfertilised eggs

• fertilised eggs

• sporophytic cells

• male gametophyte

Multiplication of genetically identical copies of a cultiver by asexual reproduction is known as

• aclonal propagation

• clonal propagation

• vegetative propagation

• polyclonal propagation

The gene controlling seven traits in pea studied by Mendel were later found to be located on the following number of chromosomes

• seven

• four

• five

• six

Part of gene which codes for an enzyme is

• cistron

• codon

• exon

• intron