#27-Pedigree-Analysis-Problem-Solving
(Botany) > Principles of Inheritance & Variation

My Notes

Create your notes while watching video by clicking on icon in video player.
Related Practice Questions :

The trait shown in the given pedigree chart is most likely a/an:

1. Autosomal recessive trait

2. Autosomal dominant trait

3. Sex linked recessive trait

4. Sex linked dominant trait

 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Study the pedigree chart given below

What does it show?

1. Inheritance of a sex-linked inborn error of metabolism like phenylketonuria
2. Inheritance of a condition like phenylketonuria as an autosomal recessive trait
3. The pedigree chart is wrong as this is not possible
4. Inheritance of a recessive sex-linked disease like haemophilia
 70%
NEET - 2009
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Study the pedigree chart of a family showing the inheritance of myotonic dystrophy.

 

The trait under study is 

1. dominant X-linked

2. recessive X-linked

3. autosomal dominant

4. recessive Y-linked.

 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear-lobes as opposed to the free ones. The squares represent the male individuals and circles the females individuals. Which one of the foloowing conclusions drawn is correct?

(1) The parents are homozygous recessive.

(2) The trait is Y-linked.

(3) The parents are homozygous dominant.

(4) The parents are heterozygous.

 63%
AIIMS - 2004
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Given below is a pedigree chart showing the inheritance of a certain sex-liniked trait in humans. 

The Trait traced in the above pedigree chart is 

(1) dominant X-linked 

(2) recessive X-linked

(3) dominant Y-linked

(4) recessive Y-linked

 65%
AIIMS - 2005
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints