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#Question id: 4309


Imagine that you've isolated a yeast mutant that contains histones resistant to acetylation. What phenotype would you predict for this mutant?

#Section 3: Genetics, Cellular and Molecular Biology
  1. The mutant will grow rapidly.

  2. The mutant will require galactose for growth.

  3. The mutant will show decreased levels of gene expression.

  4. The mutant will show increased levels of gene expression.

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TLS Online TPP Program

#Question id: 3624

#Section 3: Genetics, Cellular and Molecular Biology

To carry out a complementation test, parents that are homozygous for different mutations are crossed, producing offspring that mutant phenotype, it is due to

TLS Online TPP Program

#Question id: 3625

#Section 3: Genetics, Cellular and Molecular Biology

If a heterozygous two recessive mutation at different site will give mutant phenotype when gene involved

TLS Online TPP Program

#Question id: 3626

#Section 3: Genetics, Cellular and Molecular Biology

The major blood group locus in humans produces types A (genotypes AA or AO), B (genotypes BB or BO), AB (genotype AB), or O (genotype OO). Parents who are type AB and type O, what are the possible blood types of their offspring?

TLS Online TPP Program

#Question id: 3627

#Section 3: Genetics, Cellular and Molecular Biology

A cross is made between two plants with white flowers. All the F1 progeny had red colored flower. This is because of

TLS Online TPP Program

#Question id: 3628

#Section 3: Genetics, Cellular and Molecular Biology

Two mutant plants, both bearing white flowers, were crossed. All F1 plants had red colored flowers. Which one of the following conclusions is correct?

TLS Online TPP Program

#Question id: 3630

#Section 3: Genetics, Cellular and Molecular Biology

In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and rp (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 > Rp2 > rp). What will be expected phenotypes and ratios of offspring produced by the Rp1/rp × Rp2/rp crosses?