Home
Class 12
BIOLOGY
Read the given paragraph to answer In ...

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.
Which of the following will result when plant YyRr is self-pollinated ?

A

`9 : 3 : 3: 1` ratio of phenotypes only

B

`9 : 3 : 3: 1` ratio of genotypes only

C

`1: 1: 1: 1` ratio of phenotypes only

D

`1:1:1:1` ratio of phenotypes and genotypes

Text Solution

Verified by Experts

The correct Answer is:
A
When plant YyRr is self pollinated, `9:3:3:1` ratio of phenotypes will be observed.
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the given paragraph to answer In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes. Which of the following is correct for the condition when plant YyRr is back crossed with the double recessive parent ?

In a given plant , red colour ( R ) of fruits is dominant over white fruit ( r ) , and tallness ( T ) is dominant 35 . over dwarfness ( t ) . If a plant with genotype RRTt is crossed with a plant of genotype rrtt , what will be the percentage of tall plants with red fruits in the next generation ?

In garden pea , yellow colour of cotyledons is dominant over green and round shape of seed is dominant over wrinkled . When a plant with yellow and round seeds is crossed with a plant having yellow and wrinkled seeds , the progeny showed segregation for all the four characters . The probability of obtaining green round seeds in the progeny of this cross is :

In maize, coloured endosprem (C) is dominant over colourless (c) , and full endosperm (R) is dominant over shrunken (r). When a dihybrid of F_(1) generation was test crossed, it produced four phenotypes in the following percentage : Coloured full - 48 % Coloured shrunken - 5 % Colourless full - 7 % Colourless shrunken - 40 % From this data, what will be the distance between two non-allelic genes ?

The given Punnett's square represents to Pattern of inheritance in a dihybrid cross where yellow (Y) and round (R) seed condition in dominant over white (y) and wrinkled (r) seed condition {:(" YR Yr yR yr"),("YR F J N R"),("Yr G K O S"),("yR H L P T"),("yr I M Q U"):} A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of

Fruit shape in shephered purse (Capsella bursa) is of two types-triangular and top-shaped. Triangular fruit shape (T) is dominant over top-shape (t). Following table summarises the results of several crosses. {:("Cross","Result"),("Strain 1" xx "tt","All triangular"),("Strain 2" xx "tt","1 triangular : 1 top-shaped"),("strain 3"xx "tt","All top-shaped"),("Strain 4"xx "Tt","3 triangular : 1 top-shaped"):} Which pair of strains possess the genotyoe Tt ?