Life Sciences
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XL 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 100–102 of 122. Imported answers require review unless explicitly marked reviewed.
Question 100
Open questionXL-TMSQ2 marksNeeds review
Among the following statements, which is/are TRUE regarding the replication of DNA?
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Open questionXL-TMSQ2 marksNeeds review
Which of the following statements is/are TRUE for Colchicine?
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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 102
Open questionXL-TNAT2 marksNeeds review
Wild-type Drosophila females having three linked genes (A,B,C) were crossed with triple recessive mutant (aabbcc) males. The F₁ female progenies (AaBbCc) were back crossed with the triple negative mutant (aabbcc) males. The cross resulted in following number of progenies in F₂:
AaBbCc 241
Aabbcc 112
aaBbCc 103
aabbcc 252
aaBbcc 17
aabBCc 134
AabbCc 14
AaBbcc 127
1000
The order of genes as determined from the above data was found to be “ABC” (note that the order is equivalent to “CBA” and the order outside the markers are arbitrary).
The recombination map distance (in centi Morgan) between “A to C” is ______ (round off to one decimal place).
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