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#Question id: 66


Which of the following statements regarding isomerism is incorrect regarding biomolecules?

#Section 2: General Biology
  1. Stereoisomers that are mirror images of each other are called enantiomers.

  2. A carbon atom with four different substituents is said to be asymmetric, and asymmetric carbons are called chiral centers.

  3. Pairs of stereoisomers that are not mirror images of each other are called diastereomers.

  4. An equimolar solution of the two enantiomers (a racemic mixture) rotates the plane of plane-polarized light in a particular direction.

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#Question id: 3577

#Section 3: Genetics, Cellular and Molecular Biology

Which is the most correct description of a dominant trait?

TLS Online TPP Program

#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

TLS Online TPP Program

#Question id: 3580

#Section 3: Genetics, Cellular and Molecular 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

TLS Online TPP Program

#Question id: 3581

#Section 2: General Biology

What is the probability that each of the following pairs of parents will produce the indicated offspring? (Assume independent assortment of all gene pairs.)

(a) AABBCc X  aabbcc → AaBbCc          (b) AABbCc  X AaBbCc → AAbbCC

(c) AaBbCc  X AaBbCc → AaBbCc         (d) aaBbCC  X  AABbcc → AaBbCc