Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Why the plants that inhabit a desert are not found in a mangrove? Give reasons.

AUG GAC CUG AUA UUU UGA is the base sequence in a strand of mRNA.

1. Write the base sequence of the DNA strand from which it has been transcribed.
2. Upon translation, how many amino acids will the resulting peptide have?

What do you mean by foetal ejection reflex?

Differentiate between DNA and RNA

Name the oldest seed that has germinated. Where was it found?

Tallness in pea plant is a dominant trait, while dwarfness is the alternate recessive trait. When a pureline tall is crossed with a pureline dwarf, what fraction of tall plants in F, shall be heterozygous? Give reasons.

How many recombinant therapeutics have been approved for human use in the world? And how many are presently being marketed in India?

What does ‘competent’ refer to in competent cells used in transformation experiments?

Pick out the untranslated regions from the following mRNA and mention their location.
5'-ACGUCGAUGGCGUUUUAGGAGGAA-3'

Name the type of barrier of innate immune system, which involves:

1. HCl of stomach
2. Macrophages.