GATE XL exam:gate PYQs & Answers — Page 46

Questions 451–460 of 1235. Imported answers require independent review unless marked reviewed.

Which one of the following animals has “Book Lungs” as a respiratory organ?

Your answerChoose one option.

Earthworm

Scorpion

Octopus

Starfish

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Which one of the following describes the “innate behavior” of an animal?

Your answerChoose one option.

A behavior that is triggered due to the change in environment.

A behavior that is trained by the parents.

A behavior that is determined by the inherit.

A behavior that is learnt by “hit and trial” approach.

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Which one of the following represents a true “Ecological population”?

Your answerChoose one option.

A pitcher plant and a trapped fly in it

All animals that live near each other in a national park

The leeches and the flatworms that live in a forest

All the lions in a reserve forest

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Which of the following animals show “Bottle cells” during the gastrulation stage of development?

Your answerChoose one option.

Snails

Amphibians

Birds

Mammals

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The organisms that obtain energy from inorganic compounds are known as

Your answerChoose one option.

Autotrophs

Organotrophs

Lithotrophs

Phototrophs

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Which of the following is/are the causative agent(s) of Filariasis?

Your answerSelect all correct options. You can choose more than one.

Wuchereria bancrofti

Leishmania donovani

Brugia malayi

Trypanosoma gambiense

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In a population of 1000 wild dogs in a grassland, 360 and 480 dogs had black body colour with genotypes BB and Bb, respectively. In the same population, remaining dogs were white in colour with a genotype of bb. Based on this data, the frequency of allele “b” in the population is ______ (round off to one decimal place).

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A mature rat sperm cell has 2.5 μg of genomic DNA that is equivalent of a haploid genome. Compared to this sperm cell, the amount of genomic DNA (in μg) in a somatic cell, which is in the G2 phase of cell cycle, will be ______ (in integer).

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In an experiment, excess amount of bicoid mRNA (more than wild-type expression level) was injected into the posterior pole of a wild-type Drosophila embryo at pre-blastodermal stage. Out of the following options, which one represents the best expected phenotype in the resulted developing embryo?

Your answerChoose one option.

Normal embryo with head structure at anterior and tail structure at posterior pole

Head structure only at posterior pole of the embryo

Tail structure at anterior and head structure at posterior poles of the embryo

Head structure at both anterior and posterior poles of the embryo

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Match the hormones/precursors listed in Column I with their chemical type in Column II and the tissue of origin listed in Column III

Column I: P. Glucagon; Q. Pregnenolone; R. FSH; S. Melatonin

Column II: (i) Tryptophan derivative; (ii) Peptide; (iii) Steroid; (iv) Glycoprotein

Column III: a. Anterior pituitary; b. Pineal; c. Adrenal; d. Pancreas

Your answerChoose one option.

P – (ii) – d ; Q – (iii) – c ; R – (iv) – a ; S – (i) – b

P – (ii) – d ; Q – (iv) – a ; R – (i) – c ; S – (iii) – b

P – (i) – c ; Q – (ii) – b ; R – (iv) – d ; S – (iii) – a

P – (iv) – a ; Q – (i) – d ; R – (ii) – b ; S – (iii) – c

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GATE XL exam:gate PYQs

Question 85

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Question 90

Question 91

Question 92

Question 93

Question 94