Strategies for Enhancement in Food Reproduction — BIOLOGY STD 12 Science — Question

How can separated DNA fragments be visualized by gel electrophoresis?

In a nucleus, the number of RNA nucleoside triphosphates is 10 times more than the number of DNA nucleoside triphosphates, still only DNA nucleotides are added during the DNA replication, and not the RNA nucleotides. Why?

Given below are the events in human reproduction. Write them in correct sequential order.
Insemination, gametogenesis, fertilisation, parturition, gestation, implantation.

What is it that prevents a child to suffer from a disease he/ she is vaccinated against? Give one reason.

What do you mean by nonsense codon?

State True/ False with explanation.
Creating awareness about sex related aspects is an effective method to improve reproductive health of the people. (True/ False)

How is the action of restriction endonucleases different from that of normal endonucleases?

Cervix contains the largest and the strongest sphincter in its wall. Give reason.

Write the function of adenosine deaminase.

What are partial regulaters?