In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?

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#Question id: 11380

#SCPH28 | Zoology

Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness?

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#Question id: 3678

#SCPH01 Biochemistry

Which of the following protein can break covalent bonds?

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#Question id: 14288

#SCPH05 I Biotechnology

During a batch culture experiment the following data was obtained 

What will be the product yield (g) per gram of substrates?

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#Question id: 15479

#SCPH01 Biochemistry

Out of the following what usually supports the fastest growth rate and is therefore considered the preferred nitrogen source for E. coli

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#Question id: 4974

#SCPH28 | Zoology

Which of these is the most likely explanation for the modern-day distribution of dicynodont fossils?