Life Sciences
2021 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XL 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 94–96 of 125. Imported answers require review unless explicitly marked reviewed.
Question 9
Open questionXL-TNAT1 markNeeds review
A population of snakes in an isolated island is in Hardy-Weinberg equilibrium for a gene with only two alleles (A and a). If the allelic frequency of A is 0.6, then the genetic frequency of Aa is ________ (round off to 2 decimal places).
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Open questionXL-TNAT1 markNeeds review
In the structure of a polypeptide, one α-helix (3.6₃ helix) contains 32 intra-chain hydrogen bonds. The number of turns in the helix will be ________ (in integer).
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 11
Open questionXL-TMCQ2 marksNeeds review
Match the terms in Column I with the specific descriptions in Column II
Column I
P. Zygote
Q. Morula
R. Blastocyst
S. Ovum
T. Neonate
U. Fetus
Column II
(i) A hollow sphere of cells
(ii) A newly born offspring
(iii) A cell that results from fertilization
(iv) An embryo
(v) An unfertilized egg
(vi) A compact mass of cells
Your answerChoose one option.
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