Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 61870
TLS Online TPP Program

#Question id: 134

Ultraviolet (UV) light can be used to estimate protein solution concentrations because

#Life Sciences

  1. phenylalanine absorbs at 260 nm.

  2. all the amino acids absorb UV light.

  3. aromatic amino acids absorb at 280 nm.

  4. tryptophan and tyrosine absorb at 280 nm.

More Questions
TLS Online TPP Program

#Question id: 5756

#Applied Microbiology

Type of mutation caused by an addition or deletion of a base in a polypeptide-encoding part of a gene
TLS Online TPP Program

#Question id: 5758

#Applied Microbiology

Consider a species with a diploid (2n) number of 28 chromosomes. How many chromosomes would be found in a monoploid body cell?
TLS Online TPP Program

#Question id: 5760

#Applied Microbiology

The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that
TLS Online TPP Program

#Question id: 5762

#Applied Microbiology

An individual cell homozygous for a mutant allele of the gene for a human enzyme contains no detectable activity for that enzyme. The mutation is best described as
TLS Online TPP Program

#Question id: 5763

#Applied Microbiology

A mutation that causes a mutant phenotype only under restrictive conditions
TLS Online TPP Program

#Question id: 5765

#Applied Microbiology

How many different trisomics could be formed in a plant with a diploid number of 12?