wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Depending upon size and centromere position, the 46 chromosomes in humans have been divided into how many groups?

A
6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
7
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
10
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 7
Human chromosomes are divided into 7 groups A, B, C, D, E, F and G depending upon their size and position of centromere. Group A chromosomes are chromosomes 1 to 3. These are largest chromosomes and are metacentric, centromere is in the center. Group B chromosomes include chromosomes 4 and 5. These are large and are submetacentric. Group C chromosomes include chromosomes 6 to 12 and X. These are medium in size and are submetacentric. Group D chromosomes include chromosomes 13 to 15. These are medium in size and are acrocentric, centromere is towards the one end of chromosome. Group E chromosomes include chromosomes 16 to 18. These are medium in size and are metacentric and submetacentric. Group F chromosomes include chromosomes 19 and 20. These are small in size and are metacentric. Group G chromosomes include chromosomes 21, 22 and Y. These are small in size and are acrocentric.
Thus, the correct answer is option C.

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Cytoskeletal Elements
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon