Out of 8 ascospores formed in Neurospora the arrangement is 2a : 4a : 2a showing
no crossing over
some meiosis
second generation division
first generation division
Two linked genes a and b show 20% recombination. The individuals of a dihybrid cross between ++/++ x ab/ab shall show gametes
++80 : ab : 20
++50 : ab : 50
++40 : ab 40 : +a10 : +b : 10
++30 : ab 30 : +a 20 : +b : 20
A colourblind mother and normal father would have
colourblind sons and normal/carrier daughters
colourblind sons and daughters
all colourblind
all normal
The process of translation is
ribosome synthesis
protein synthesis
DNA synthesis
RNA synthesis
Because most of the amino acids are represented by more than one codon, the genetic code is
overlapping
Wobbling
degenerate
generate
In the genetic dictionary, there are 64 codons as
64 amino acids are to be coded
64 types of tRNAs are present
there are 44 nonsense codons and 20 sense codons
genetic code is triplet
An organism with two identical alleles is
dominant
hybrid
heterozygous
homozygous
Identify the type which has no genotype characters.
BBYY
BBYy
BbYY
bbyy
Who is considered as the ‘father of genetics’?
Gregor Johann Mendel
Albert Einstein
James Watson & Francis Crick
C.V.Raman
During DNA replication, the strands separate by
DNa polymerase
topoisomerase
unwindase/helicase
gyrase