Multiple alleles control inheritance of

TLS Online TPP Program

#Question id: 10424

#Unit 6. System Physiology – Plant

Phytochrome responses fall into three major categories based on the amount of light they require, which one is not the category of phytochrome responses;

TLS Online TPP Program

#Question id: 10425

#Unit 6. System Physiology – Plant

Very low fluence responses such as 0.0001 µmol m–2 reach a maximum at about 0.05 µmol m–2, on these fluence rate red light induce phytochrome responses. Which of the following is not the phytochrome responses on VLFR

TLS Online TPP Program

#Question id: 10426

#Unit 6. System Physiology – Plant

low-fluence responses (LFRs) another set of phytochrome responses, which include;

a) It can be initiated when fluence reaches 1.0 µmol m–2, and they are saturated at about 1000 µmol m–2

b) promotion of lettuce seed germination

c) inhibition of hypocotyl elongation and regulation of leaf movements

d) It also inhibits the growth of the mesocotyl

Which of the following combinations is correct for LFRs?

TLS Online TPP Program

#Question id: 10427

#Unit 6. System Physiology – Plant

HIRs require prolonged or continuous exposure to light of relatively high irradiance, these HIRs induce phytochrome responses such as

a) Synthesis of flavonoids including anthocyanins

b) Inhibition of hypocotyl elongation in various plants

c) Induction of flowering and Plumular hook opening in lettuce

d) Enlargement of cotyledons in mustard

e) Production of ethylene in sorghum

Which of the following phytochrome responses induce by HIRs is correct?

TLS Online TPP Program

#Question id: 10428

#Unit 6. System Physiology – Plant

Match the following column given fluence with its induce phytochrome responses;

COLUMN A	COLUMN B
A) low-fluence responses (LFRs)	i) do not show Photoreversibility while Law of Reciprocity is followed
B)  high irradiance responses (HIRs)	ii) Shows the Photoreversibility and also the Law of Reciprocity is followed
C) Very low fluence response (VLFR)	iii) It will absorb red and blue light and responses is measuredly recepted by phytochrome A
	iv) In dark-grown: far red, blue, UV-A recepted by Photoreceptor phyA and cryptochrome
	v) ) It will absorb Red, far-red and responses is measurely recepted by phyB, phyD, phyE

Match the following combination with its correct responses;

TLS Online TPP Program

#Question id: 10429

#Unit 6. System Physiology – Plant

Which of the following given statements about PHYA is incorrect?