Practice Questions

TLS Online TPP Program

#Question id: 31294

Which of the following statements is incorrect about “bottom-up” specification?

#Unit 5. Developmental Biology

Sox17 is critical for activating the genes that specify cells to be endoderm.
Nodal secreted from the vegetal and signal the cells above them to become specified as mesoderm.
Eomesodermin and Brachyury genes, causing the cells to become specified as ectoderm.
In the absence of any kind of induction, cells become ectoderm.

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TLS Online TPP Program

#Question id: 33704

#Unit 2. Cellular Organization

Find true and false statements

A. Tandemly repeated sequences are liable to undergo misalignments during chromosome pairing

B. The sizes of tandem clusters tend to be homozygous in population

C. The smaller clusters of tandemly repeated sequences can be used to characterize individual genomes

TLS Online TPP Program

#Question id: 4711

#Unit 11. Evolution and Behavior

Starting from the wild mustard Brassica oleracea, breeders have created the strains known as Brussels sprouts, broccoli, kale, and cabbage. Therefore, which of the following statements is correct?

TLS Online TPP Program

#Question id: 26820

#Unit 10. Ecological Principles

Following are the main types of defense employed by prey species against predators Types of defense: Chemical with aposematic coloration

A.Cryptic coloration

B.Batesian mimicry

C.Intimidation display

D.Prey Species: Grasshoppers and seahorses

1.Hoverflies and wasps

2.Bombardier beetles, ladybird beetles, many butterflies

3.Frilled lizard, Porcupine fish

Which one of the following combinations is correct?