wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Read the following statements:

(1) Genetic variability is the root of all breeding programs.
(2) Induced mutations are useful when desired alleles are absent in germplasm.
(3) Conventional breeding is not constrained by the availability of a limited number of genes.
(4) Other breeding methods that are used are selection amongst somaclonal variants and genetic engineering.
How many of the above statements are correct?

A
1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 4
1. Breeding programs are done to produce varieties of desired characters and those are more productive because there is genetic variation in breeding when two organisms are crossed. Hence, genetic variability is the root of all breeding programs.
2. Germplasm is basically the genetic material of cells. If desired alleles are absent in the germplasm, mutations can be induced to express the desirable characters in the varieties.
3. Conventional breeding is also known as classical or traditional breeding. It is the development of new varieties using traditional methods. The old breeding methods are still used today to improve the varieties because these methods are not constrained by the availability of a limited number of genes.
4. Somaclonal variants and genetically engineered organisms are distinguished and selected by various breeding methods. Somaclonal variants are raised by in vitro culture whereas genetically engineered organisms are produced by manipulating the DNA.
Hence, all the statements given in the question are correct.

So, the correct answer is '4'.

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Animal Breeding
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon