LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Genetic engineering has already helped people by ____
A
altering pedigrees
B
curing Down’s syndrome
C
eliminating infant deaths
D
making plants drought resistant
Explanation: 

Detailed explanation-1: -Some genetically modified plants contain genes that make the plant resistant to certain antibiotics. Scientists often add these resistant genes during genetic modification so that the GM plants and cells can be distinguished from non-GM ones.

Detailed explanation-2: -The plant hormone ethylene is known to play a key role in drought tolerance; in particular, lower ethylene levels result in higher drought tolerance. The maize ARGOS8 gene negatively regulates the ethylene response by encoding a protein that interacts with the ethylene receptor signaling complex.

There is 1 question to complete.