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TLS Online TPP Program

#Question id: 1477

The effector proteases in the apoptotic pathway, the caspases, are so named because

#Unit 4. Cell Communication and Cell Signaling

  1. they contain a key cysteine residue in the catalytic site and selectively cleave proteins at sites just C-terminal to aspartate residues.

  2. they contain a key serine residue in the catalytic site and selectively cleave proteins at sites just N-terminal to aspartate residues.

  3. they contain a key cysteine residue in the catalytic site and selectively cleave proteins at sites just C-terminal to glutamate residues.

  4. they contain a key cysteine residue in the catalytic site and selectively cleave proteins at sites just N-terminal to glutamate residues.

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TLS Online TPP Program

#Question id: 4788

#Unit 8. Inheritance Biology

The wild-type (W) Abraxas moth has large spots on its wings, but the lacticolor (L) form of this species has very small spots. Crosses were made between strains differing in this character, with the following results:

 What are correct conclude from genetic explanation of the results in these two crosses

a. female are heterogametic but male are homogametic for sex chromosome

b. female are homogametic but male are heterogametic for sex chromosome

c.Trait  for spot shape linked with sex chromosome

d. Trait  for spot shape linked with autosome chromosome

e. Gene  for spot shape  present on  mitochondrial genome
TLS Online TPP Program

#Question id: 4789

#Unit 8. Inheritance Biology

Red flower in plant mediated by three non-allelic genes as a follows Homozygous for mutant allele a ,b,c at any locus give white flower. A plant with Genotype Aabbcc is cross with genotype aaBbCc Plant. What is proportional of white flower among their offspring?
TLS Online TPP Program

#Question id: 4790

#Unit 8. Inheritance Biology

The F2 genotypes of two independently assorting gene A and B with complete dominance result in a 9 : 3 : 3 : 1 ratio of phenotypes if there is no interaction between the genes. Following modify phenotypic ratio of 9:3:3:1 given as following table (p - phenotype) Which of the following correct matching of gene interaction and their deviated phenotype ratio?
TLS Online TPP Program

#Question id: 4791

#Unit 8. Inheritance Biology

Body color in mice, YY is a recessive lethal, Yy yellow, yy gray and hair type straight is dominant over fuzzy. A geneticist crosses two yellow mice with heterozygous straight hair. Which the observe ratio is of obtains following progeny?
TLS Online TPP Program

#Question id: 4792

#Unit 8. Inheritance Biology

A number of all-white cats are crossed and they produce the following types of progeny: 12/16 all-white, 3/16 black and 1/16 gray. If the genotype black progeny is A_bb. Which of the following statement are correct?

a. Epistatic genes is recessive.

b. Epistatic gene is dominant

c. A gene is dominant epistatic

d. B gene is dominant epistatic

e. aa gene is recessive epistatic

f. bb gene is recessive epistatic
TLS Online TPP Program

#Question id: 4793

#Unit 8. Inheritance Biology

Hypophosphatemia is caused by an X-linked dominant gene in humans. Normal man marries with Hypophosphatemia woman whose father is normal. What will be observation in their child is correct?

a. All daughters affected                                      b. half of their daughters affected

c. All sons affected                                              d. half of their son’s affected