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TLS Online TPP Program

#Question id: 1104

Which of the following statements is true of signal molecules?

#Unit 4. Cell Communication and Cell Signaling

When signal molecules first bind to receptor tyrosine kinases, the receptors phosphorylate a number of nearby molecules.
In response to some G protein-mediated signals, a special type of lipid molecule associated with the plasma membrane is cleaved to form IP3 and calcium.
In most cases, signal molecules interact with the cell at the plasma membrane, enter the cell, and eventually enter the nucleus.
Protein kinase A activation is one possible result of signal molecules binding to G protein coupled receptors.

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TLS Online TPP Program

#Question id: 5464

#Unit 8. Inheritance Biology

Two varieties of maize averaging AABBCC (200 inch) and aabbcc (80 inch) in height, respectively, are crossed. The F1 progeny is quite uniform averaging 140 inches in height allowed to self fertilization. If height is control by 3 pair of polygene, what is the height of following genotype of F2 plant?

I- AaBBCC II- aaBbCC III- aabbCc

TLS Online TPP Program

#Question id: 5463

#Unit 8. Inheritance Biology

Plants with genotype aabb have seeds that average 1 g in weight, whereas plants with genotype AABB have seeds that average 3.4 g in weight. Plant with genotype aabb is crossed with plant of genotype AABB. If the F1 plants are intercrossed to produced 2/8 proportional of F2 plant having expected seed weight

A . 1.6 B- 2.8 C- 2.2 D. 1 E . 3.4

TLS Online TPP Program

#Question id: 5462

#Unit 8. Inheritance Biology

What was the ratio of F2 generation when red and white kernelled variety of wheat were crossed when 2 QTL control character?

TLS Online TPP Program

#Question id: 5461

#Unit 8. Inheritance Biology

When two or more nonallelic gene pairs affect the same character in the same way, it is called _______.

TLS Online TPP Program

#Question id: 5460

#Unit 8. Inheritance Biology