The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?

TLS Online TPP Program

#Question id: 185

#XL - T Zoology

Match the amino acids with their correct functional group:

1. Indole	i. Histidine
2. Imidazole	ii. Tryptophan
3. Thiol	iii. Cysteine
4. Pyrrolidine	iv. Proline

TLS Online TPP Program

#Question id: 186

#XL - T Zoology

What will be the net charge on given peptide at pH 5?

TLS Online TPP Program

#Question id: 186

#XL - P Chemistry

What will be the net charge on given peptide at pH 5?

TLS Online TPP Program

#Question id: 189

#XL - T Zoology

Because coenzymes are specific for the chemical groups that they accept and donate, they are referred to as

TLS Online TPP Program

#Question id: 190

#XL - T Zoology

Ca++ or Mg++ are most likely to be part of ________, while Zn++ or Fe++ are present in ________.

TLS Online TPP Program

#Question id: 191

#XL - T Zoology

The role of zinc in the mechanisms of carbonic anhydrase is to