1⟩ Why dna has no uricel while rna had?
because in DNA if uracil is present then it would be more
prone to mutations as urasil has non specific binding also
stability factoe comes to play a role.
Genetics
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13 Genetics Questions And Answers
2⟩ Is male child have more gentical sequence as of father or mother?
mother
3⟩ Is codominance inheritance same with incomplete dominance inheritance?
no in former all alleles are expressed with discrete
phenotype effect..exam of AB blood group.. 1A:2AB:1B.
later one gives mixed effect of all alleles.
exam of flower 1red:2pink:1white.
4⟩ Gene = cistron = intron + exon?
It is in the case of eukaryotic gene
5⟩ How is co-dominance different from incomplete dominance?
When both allels are completely expressed in heterozygote
called co dominance.
in incomplete dominance in heterozygotes condition
intemidiate between dominant and recessive alleles occur
6⟩ The three stop codons UAG, UAA, UGA do not code for any proteins. then why does the start codon AUG code for a protein, i.e, methionine?
AUG codon codes for an amino acid ;Methionine, because a tRNA is available with the anti-codon complementary to the AUG codon. This tRNA brings in the Methionine molecule when charged to the site of protein synthesis ie Ribosomes in the cytosol.
7⟩ What is totipotency?
The inherent capacity of a cell to divide as well as
differentiate to form a whole organism is known as totipotency
8⟩ Name three scientists involved in Human Genome Project?
craig ventor
james watson'
francis collins
9⟩ Explain steps involved in transcription?
there are 3 basic steps initiation, elongation and termination
10⟩ Is male child having more genital sequence as of father or mother?
Male child is having the genital sequence equally as the
mother and father because in male child the x-chromosome
comes from mother and the y-chromosome comes from father
11⟩ If mutation occurs at the antron region of primary RNA, then what will be it causes?
If mutation occirs at intron region of primary transcript
then functional mRNA will not be generated. This is due to
defect in mRNA splicing. May be this mutation occurs at one
of the splice site which results in production of mRNA of
different sizes.
12⟩ What is the method used to identify your transformed cells from the plasmid vector?
I) If transformant is thought to have antibiotic resistant
gene (called as Marker Gene)along with ur desired gene, then
culture those cells in a media containing that same
antibiotic.
==>Case 1:- the cell is not transformed.:-
the cell will not have the antibiotic resistant gene, hence
it wont grow (or simply die)bcoz of antibiotic in the media.
==>Case 2:-the cell is successfully transformed.:-
The cell will easily grow in media bcoz antibiotic wont
affect it as cell will resist it.(bcoz of marker gene).
13⟩ Who was the father of genetic engineering?
Paul Berg
