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#Question id: 1909


Concerning MHC class II antigen differences between two individuals, which of the following is NOT TRUE?

#Section 2: General Biology
  1. They produce mixed lymphocyte reactions

  2. They stimulate formation of helpers to generate cytotoxic T-cells

  3. They cause graft vs host disease

  4. For sibling pairs, they will only exist on average in one in four cases

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TLS Online TPP Program

#Question id: 3575

#Section 2: General Biology

Phenylketonuria a metabolic disease in human is caused by recessive allele k. if two heterozygous carriers of allele marry and have three children, what will be the chance that one normal and another two affected?

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#Question id: 3576

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following most accurately restates Mendel's law of segregation?

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#Question id: 3577

#Section 3: Genetics, Cellular and Molecular Biology

Which is the most correct description of a dominant trait?

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#Question id: 3578

#Section 3: Genetics, Cellular and Molecular Biology

A locus is:

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#Question id: 3579

#Section 3: Genetics, Cellular and Molecular Biology

Following some statement is correct with monohybrid and Dihybrid cross?

A) Two alleles for gene segregate into gametes in equal proportions.

B) Monohybrid F2 phenotype 1:2:1 ratio conclude, there is no segregation in character

C)  Monohybrid F2 phenotype 3:1 ratio conclude, there is a no blending inheritance

D) Dihybrid F 2 phenotype 3:1 ratio conclude complete linkage

TLS Online TPP Program

#Question id: 3580

#Section 2: General Biology

Different genetic cross regarding two independently assorting non allelic gene with complete dominance and their phenotypic ratio showed in a following. Which of the following is incorrect combination? 

Genetic cross

Phenotype ratio

1

AABb X AaBb

3:1

2

Aabb X  AaBb   

3:1:3:1

3

AABb X AaBB   

1:1 

4

Aabb X aaBb   

1:1:1:1