All articles filed under Quiz.
Why did Hershey and Chase use «35S’ and 32p’ in their experiment? Explain. Ans. Hershey and Chase u…
Anthropogenic action can enhance the rate of evolution. Explain with the help of an example. Ans. A…
In England after industrialisation, the population of dark winged moths were more favoured than whi…
Identify the type of natural selection depicted in the graph above. Ans. The type of natural select…
Natural selection operates in different ways in nature. Ans. Natural selection operates in differen…
Endosperm development precedes embryo development. Justify. Ans. Endosperm development precedes emb…
In a human female, probability of an ovum to get fertilized by more than one sperm is impossible. G…
Why could parasite not survive in a transgenie tobacco plant? Ans. Parasites may not survive in a t…
How do sense and anti-sense RNAs function? Ans. Sense and antisense RNAs function in the following …
Name the vector that is used to introduce nematode-specific genes into the host plant (tobacco) Ans…
Name the nematode scientific name) that infects the roots of tobacco plant and reduces its yield. A…
Why is insertional inactivation preferred over the use of selectable markers in cloning vectors? An…