+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Principles Of Inheritance And Variation

Question
CBSEENBI12046938
Wired Faculty App

If a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, the offsprings will be

  • half- white flowered

  • half- red flowered

  • all white flowered

  • all red flowered

Solution

D.

all red flowered

The red colour of flower dominates upon white colour of flower. In the present varieties both parents are of pure variety, therefore, the offsprings will be all heterozygous red flowered as shown below:

Parents                           RR                            rr

                             (Red flowered)           (White flowered)

Gametes                     R          R                 r          r

F1 generation                 Rr         Rr        Rr         Rr

(offspring)                  (Heterozygous red flowered plants)

Some More Questions From Principles of Inheritance and Variation Chapter

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

Why is male Drosophila regarded as heterogametic ?

What term is used for the two chromatids resulting from the interchange of segments during crossing over ?

What is name of a cross in which a dominant individual is crossed with a recessive parent?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation