Phenotype of an organism is the result of _________________.
mutations and linkage
cytoplasmic effects and mutation
environmental changes and sexual dimorphism
genotype and environmental interactions
A human male produces sperms with the genotype AB, Ab ab and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotypeof thisperson?
AaBb
AaBB
AABb
AABB
Production of a human protein in bacteria by genetic engineering is possible because _______________.
bacterial cell can carry out the RNA splicing reactions
the human chromosomes of gene regulation is also present in bacteria cell
the mechanism of gene regulation is same in bacteria cell also
the genetic code is universal
A man and a woman who do not show any apparent signs of diseases.They have 7 children (2 daughters and 5 sons). Three of the sons suffer from a genetic disease.The daughters are not affected. Which of the following mode of inheritance do you suggest for this disease?
Autosomal dominant
Sex linked dominant
sex linked recessive
Sex - linked recessive
In order to find out the different types of gametes produced by a pea plant having the genotype AaBb. it should be crossed to a plant with the genotype ____________.
aaBB
aabb
One gene one enzyme hypothesis was postulated by _____________.
R Franklin
Hershey and Chase
A Garrod
Beadle and Tatum
Protein syntehsis in an animal cell takes place _____________________.
only in the cytoplasm
in the cytoplasm as well as in the cytoplasm
in the cytoplasm as well as in mitochondria
only on ribosomes attached to a nucleus
The RNA that picks up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called __________________.
mRNA
tRNA
rRNA
RNA
During replication of a bacterial chromosomes DNA synthesis starts from a replication origin site and _____________.
RNA primers are involved
is facilitated by telomerase
moves in one direction of the site
moves in bi - directional way
Genetic code consists of ________________.
adenine and guanine
cytosine and guanine
All of the above