MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Definition of Locus

The distance ...

Question

The distance between A and B genes is too long on a chromosome, the strength of linkage between them is

A

More

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Less

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

No relation to distance

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Same irrespective of close or distant location

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Less
Linkage refers to the presence of two different genes on the same chromosome. Two genes that occur on the same chromosome are said to be linked, and those that occur very close together are tightly linked. Study of linkage provides information about the relative position of genes on chromosomes, allowing the construction of chromosome maps. If distance between two genes A and B genes is too long on the chromosome, the strength of linkage is less. More the distance, lesser will be the linkage and vice versa.

Suggest Corrections

thumbs-up

0

Similar questions

Q. How many of the following statements are correct?
Statement I: Recombination of genes is directly proportional to the strength of linkage.
Statement II: Recombination of genes is inversely proportional to the strength of linkage.
Statement III: More the distance between the two genes on a chromosome, less the strength of linkage.
Statement IV: More the distance between the two genes on a chromosome, more the strength of linkage.
Statement V: Recombination frequency is inversely proportional to the distance between the genes present on a chromosome.

Q. How many of the following statements are wrong?
Statement I: Strength of linkage is directly proportional to the recombination of genes.
Statement II: Recombination of genes is inversely proportional to the strength of linkage.
Statement III: More the distance between the two genes on a
chromosome, less will be the strength of linkage.
Statement IV: More the distance between the two genes on a
chromosome, more the strength of linkage.
Statement V: Recombination frequency is inversely proportional to the distance between the genes present on a chromosome.

Q. Statement 1: The physical distance between two linked genes determines both the strength of linkage and frequency of crossing over between them.
Statement 2: Linked genes show a higher chance of inheritance together if the distance between them is longer.

Choose the correct option

Q. Strength of linkage is related inversely to distance between

Q. Consider the following statements (A D) and select the correct option stating ones are true (T) and false (F)?
A. Genes located on different chromosomes always show linkage.
B. Homologous non-sister chromatids participate in crossing over during gamete formation.
C. The frequency of crossing over between any two genes is generally proportional to the distance between them on the chromosome
D. Two non-sister chromatids participating in crossing over at any given point will lead to the formation of one type of gamete.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction to Genetics

BIOLOGY

Watch in App

explore_more_icon

Explore more

Definition of Locus

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon