Which free-living cells were the earliest contributors to the formation of Earthʹs oxidizing atmosphere?

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#Question id: 4730

#SCPH01 Biochemistry

Cross is made between a pure breeding plant having red coloured male flowers with a pure breeding plant having white colored female flowers. All of these offspring are white colored flower. Upon selfing of these F1 red flower plant produced both red and white flower. Which of the following is conclusion of these cross?

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#Question id: 17820

#SCPH05 I Biotechnology

During the RNA extraction guanidinium thiocyanate functions as a strong inhibitor of

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#Question id: 1740

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

Activation of resting B-cells by T-helper cells depends directly upon costimulatory interaction between:

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#Question id: 4947

#SCPH28 | Zoology

The first genes on Earth were probably

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#Question id: 3522

#SCPH28 | Zoology

A haplo-diplod insect, Male are haploid but female are diploid, A female who is heterozygous for recessive red eye color mutation mate with red eye male. What will be percent of wild phenotype color eye among their female?