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TLS Online TPP Program

#Question id: 27257

Because of steric constraints, purines in purine nucleotides are restricted to two stable conformations with respect to deoxyribose, called syn and anti.

            
The two molecules shown in the figures are best described as

#Section 3: Genetics, Cellular and Molecular Biology

  1. A-syn-Adenosine & B-anti-Adenosine

  2. A-syn-Guanine & B-anti- Guanine 

  3. A-anti-Adenosine & B-syn-Adenosine
  4. A-anti-Guanine & B-syn- Guanine 
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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
TLS Online TPP Program

#Question id: 3581

#Section 3: Genetics, Cellular and Molecular 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
TLS Online TPP Program

#Question id: 3582

#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 is correc

Genetic cross

Phenotype ratio

I

AABb X AaBb

A

1:1

II

AaBb X  aaBB   

B

3:3:1:1

III

Aabb X aaBb   

C

6:2 

IV

AaBb X Aabb   

D

1:1:1:1

TLS Online TPP Program

#Question id: 3582

#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 is correc

Genetic cross

Phenotype ratio

I

AABb X AaBb

A

1:1

II

AaBb X  aaBB   

B

3:3:1:1

III

Aabb X aaBb   

C

6:2 

IV

AaBb X Aabb   

D

1:1:1:1