The okazaki fragements in DNA chain growth ______________.
result in transcription
polymerase in teh 3' to 5' direction and forms replication fork
prove semi -consevative nature of DNA replication
polymerize in the 5' to 3' direction and explain 3' to 5' DNA replication
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
What is true about is isolated small tribal popualtions?
There is a decline in population as boys marry girl only from their own tribe
Hereditary diseases like colour blindness do not spread in teh isolated population
wrestlers who develop strong body muscles in their life time pass this cahracter on their progeny
There is no change in population sixe as they have large gene pool
A normal woman who's father was colourblind is married to normal man. The sons would be ___________
75% colourblind
50% colourblind
all normal
all colourblind
Triticale has been evolved by inter generic hybridization between _____________________.
Wheat and rye
wheat and rice
rice and maize
wheat and egilops
Two gens R AND Y are located very close on the chromosomal linkages map of maize plant. When RRYY and rryy genotypes are hybridized then F2 segregation will show _____________.
higher number of the recombination types
segregation in the genotypes are hybridized then F2 segregation will show
Segregation in 3 : 1 ratio
higher number of the parental types
DNA Replication is ________________.
Conservative and discontinuous
Semi conservative and semi discontinuous
semi - conservative and discontinuous
Conservative
In a plant red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If plant with RRTt genotype is crossed with a plant that is rrtt ______________.
25% will be tall with red fruit
50% will be tall with red fruit
75% will be tall with red fruit
All of the ten off springs will be tall with red fruit
The codons causing cahain termination are __________________.
TAG, TAA, TGA
GAT, AAT, AGT
AGT, TAG, UGA
UAA, UAG, UGA
The length of DNA molecules greatly exceeds the dimensions of teh nucleus in eukaryotic cells. How is this DNA accommulated?
Deletion of non essential genes
Super coilinig in nucleosomes
DNAs digestion
Througjh elmination of reptitive DNA
