Human Reproduction — BIOLOGY STD 12 Science — Question

Study of ineraction of antigen and antibodies in the blood is called :

Coleorhiza is

Which one of the following statements is correct?

Transplantation of tissues/ organs to save certain patients often fails due to rejection of such tissues/ organs by the patient. Which type of immune response is responsible for such rejections?

Chromosomal abnormality of an unborn baby (while in mother's womb) can be found out by a technique called

If the base sequence of a codon in mRNA is 5'-AUG-3', the sequence of tRNA pairing with it must be:

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:

Ascaris completes its life cycle in:

Gene for cloning may be chemically synthesized:

If carbon dioxide is withdrawn from the biosphere, which organism would first experience negative effects: