What is F2 phenotype ratio observed when a homozygous recessive mutation in either or both of two different genes results in the same mutant phenotype?

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#Question id: 19095

#Unit 6. System Physiology – Plant

Coronatine is a toxin effector produced by the bacterium Pseudomonas syringae. Coronatine is involved interfering which type of defense response?

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#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

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#Question id: 15523

#Unit 4. Cell Communication and Cell Signaling

The appearance of ϒδ thymocytes and αβ thymocytes during mouse fetal development. Fetal animals generate

a) more αβ T-cells than ϒδ T-cells

b) the proportion of ϒδ T-cells generated drops off dramatically after birth

c) the proportion of αβ T-cells generated drops off dramatically after birth

d) more ϒδ T-cells than αβ T cells

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#Question id: 5007

#Unit 11. Evolution and Behavior

Select the factor most likely to have caused the animals and plants of India to differ greatly from species in nearby Southeast Asia.

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#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?