Following table shows the number of individuals of five tree species in a community

Based on the above, the Simpson’s index and Shannon weaver of the community will be respectively?

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#Question id: 10504

#SCPH06 I Botany

Under which conditions, the Pseudomonas aeruginosa synthesize and release of siderophores

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#Question id: 3635

#SCPH28 | Zoology

In the multiple allele series that determines coat color in rabbits, c+codes for agouti, cch for chinchilla and ch for Himalayan. Dominance is in the order c+>cch>ch. In a cross of c+/cch X cch/ch, what proportion of progeny will be chinchilla?

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#Question id: 3617

#SCPH06 I Botany

Alternate forms of a gene is called

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#Question id: 15657

#SCPH06 I Botany

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium.

You next construct a MelA– MelB– double mutant, which gives the following behavior:

 

Which of your two models is consistent with this new data?

a) the MelA- MelB- double mutant is identical to the MelB- mutant

b) MelA- is epistatic to MelB-

c) MelB- is epistatic to MelA-

d) the MelA- MelB- double mutant is identical to the MelA- mutant

Which of the following is the correct prediction about the double mutants?

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#Question id: 10510

#I Life Science/ Life Sciences Group – I-V

Constitutive chemical defenses are effective against many different herbivores, including insects and mammals. Hemlock (Cicuta sp.) produces which toxins that a polyacetylene prolongs the repolarization of neuronal action potentials.