GATE BT 2020 Paper 1 — page 18

Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

Assertion [a]: A genetically engineered rice that produces beta-carotene in the rice grain is called Golden rice

Reason [r]: Enabling biosynthesis of provitamin A in the rice endosperm gives a characteristic yellow/orange color

Your answerChoose one option.

Both [a] and [r] are false

Both [a] and [r] are true but [r] is not the correct reason for [a]

Both [a] and [r] are true and [r] is the correct reason for [a]

[a] is true but [r] is false

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The sequence of a 1 Mb long DNA is random. This DNA has all four bases occurring in equal proportion. The number of nucleotides, on average, between two successive EcoRI recognition site GAATTC is ____________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

E. coli was grown in ¹⁵N medium for several generations. Cells were then transferred to ¹⁴N medium, allowed to grow for 4 generations and DNA was isolated immediately. The proportion of total DNA with intermediate density is __________ (round off to 2 decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

2020 · Paper 1

Question 42

Question 43

Question 44