#Question id: 7288
#Unit 5. Developmental Biology
Following statements are regarding to the expression of genes in floral quartate model in Arabidopsis thaliana.
A. Sepals- AP1(heterodimer) + SEP(homodimer)
B. Petals-AP1(monomer)+PI(monomer)+AP3(monomer)+SEP(monomer)
C. Stamens- AP3(monomer)+PI(monomer)+AG(monomer)+SEP(monomer)
D. Carpels- AG(homodimer)+SEP(homodimer)
Which of the following genetic combinations are incorrect?
#Question id: 7294
#Unit 5. Developmental Biology
Multiple factors regulate flowering in Arabidopsis. FT mRNA is expressed in companion cells of the leaf vein in response to multiple signals, including day length, light quality, and temperature. FT moves in the phloem from leaves to the apical meristem. FT is unloaded from the phloem in the meristem and interacts with FD.
FT-FD complex activates multiple genes. Which of the following combination is correct?(SS)
#Question id: 7296
#Unit 5. Developmental Biology
some of the following statements regarding to this experiment are given below. Which of the following statements is incorrect?
#Question id: 7300
#Unit 5. Developmental Biology
Following
genes regulate flowering, column I represents genes, column II represents
transcription factor family and column III represents functions.
|
Column I |
Column II |
Column III |
|
A. FLOWERING D (FD) |
i. bZIP |
a. Activates flowering downstream of florigen |
|
B. SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) |
ii. MADS |
b. Receptor for florigen |
|
C. FLOWERING LOCUS C |
|
c. Class E homeotic genes |
|
D. SEPALLATA (SEP) |
|
d. Floral repressor |
Which of the following is correct?
#Question id: 22944
#Unit 5. Developmental Biology
#Question id: 22938
#Unit 5. Developmental Biology
| Gene | Transcription Factor Family | Functions |
| 1. CONSTANS (CO) | i- bHLH | P- Activates flowering in response to long photoperiods |
| 2. FLOWERING D (FD) | ii- Zinc finger | Q- Receptor for florigen, activates flowering via AP1 |
3. PHYTOCHROME INTERACTING FACTOR4 (PIF4) | iii- bZIP | R- Activates florigen in response to high temperature |
| 4. FLOWERING LOCUS C | iv- MADS | S- Floral repressor |