NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is it useful to insert a gene into lettuce plants to make them frost resistant?
A
Grow taller lettuce.
B
Can grow them outside all year.
C
Grow tastier lettuce.
D
Grow insect resistant lettuce.
Explanation: 

Detailed explanation-1: -Even these cold-hardy greens will need some extra protection if frequently exposed to temperatures in the low 20s and teens. You can protect your cool season crops (including lettuce, which is more easily injured than other greens), by throwing a blanket or row cover over the plants.

Detailed explanation-2: -Lettuce is mostly tolerant of temperatures near freezing for a short period of time, though plants will grow more slowly. Freeze damaged leaves that are not removed from heads may break down, decay, and cause post harvest issues.

Detailed explanation-3: -Lettuce grows best in loose, cool soil with good drainage. The addition of organic materials, such as compost or manure, will increase drainage, provide essential nutrients and improve your lettuce growing conditions. If you’ve had trouble with lettuce growth, consider purchasing a soil test kit.

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