Triticale has been evolved by intergeneric hybridization betwen
wheat and rye
wheat and rice
rice and maize
wheat and Aegilops
A DNA with unequal nitrogen bases would most probably be
single stranded
double stranded
triple stranded
four stranded
Of a normal couple, half the sons are haemophilic while half the daughters are carriers. The gene is located on
X-chromosome of father
Y-chromosome of father
one X-chromosome of mother
both the X-chromosomes of mother
When a certain character is inherited only through female parent, it probably represents
multiple plastid inheritance
cytoplasmic inheritance
incomplete dominance
Mendelian nuclear inheritance
A colourblind mother and normal father would have
colourblind sons and normal/carrier daughters
colourblind sons and daughters
all colourblind
all normal
The transforming principle of Pneumococcus as found out by Avery, MacLeod and McCarty was
mRNA
DNA
protein
polysaccharide
The genes present on the same chromosome are called linked gene. This phenomenon is called:
Parental gene
Recombinant gene
Autosomes
Linkage
A colourblind girl is rare because she will be born only when
her mother and maternal grandfather were colourblind
her father and maternal grandfather were colourblind
her mother is colourblind and father has normal vision
parents have normal vision but grand parents were colourblind
Three or more alleles of genes are commonly called:
Genome
Multiple allele
Allele
Locus
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
