A pure line dominant plant has height of 100 cm while pure line of recessive plant has 20 cm. If one dominant gene contribution is 8 cm, what is number of QTL control plant height?

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#Question id: 12402

#Unit 6. System Physiology – Plant

According to the Cholodny–Went model of phototropism, the tips of grass coleoptiles have specialized functions such as

a) Production of auxin

b) Perception of a unilateral light stimulus

c) Lateral transport of IAA in response to the phototropic stimulus

Which of the following given above functions is correct?

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#Question id: 5365

#Unit 8. Inheritance Biology

The following pedigree shows the inheritance of a common phenotype controlled by an autosomal recessive allele. The probability of carriers in the population is 1/3. What is the probability that a child from parents III-3 and III-4 will show the phenotype?

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#Question id: 9199

#Unit 9. Diversity of Life Forms

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

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#Question id: 16100

#Unit 7. System Physiology – Animal

Heat-loss mechanism:

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#Question id: 1375

#Unit 4. Cell Communication and Cell Signaling

Four ECM ubiquitous protein components, each of which comprises multiple, distinct, repeating domains, are found in basal laminae. Given below are a list of some extracellular matrix (ECM) proteins in column A and their characteristics in column B.

Column A	Column B
a. Type IV collagen	i. a large multidomain proteoglycan that binds to and cross-links many ECM components and cell-surface molecules.
b. Laminins	ii. a rodlike molecule that cross-links type IV collagen, perlecan, and laminin, which helps incorporate other components into the ECM and also stabilizes basal laminae.
c. Perlecan	iii. a family of multi-adhesive, cross-shaped proteins that form a fibrous two-dimensional network with type IV collagen and that also bind to integrins and other adhesion receptors.
d. Nidogen	iv. trimeric molecules with both rodlike and globular domains that form a two-dimensional network.

Which one of the following is the most appropriate match?