English

Classify the Chromosomes on the Basis of Position of Centromere. - Biology

Advertisements
Advertisements

Question

Classify the chromosomes on the basis of position of centromere.

Answer in Brief

Solution

Types of Chromosomes :

According to the position of the centromere, chromosomes are classified into following types

Metacentric : If the centromere is situated in the middle of the chromosomes it is called metacentric chromosomes.

Sub-metacentric : If the centromere is situated some distance away from the middle it is called submentacentric chromosomes.

Acrocentric : If the centromere is situated near the end of the chromosomes it is called acrocentric chromosome 

Telocentric : If the centromere is situated at the tip of the chromosome it is called telocentric chromosome.

shaalaa.com
  Is there an error in this question or solution?
2018-2019 (February) set 1

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Briefly mention the contribution of T.H. Morgan in genetics.


Explain codominance in colour coat in cattle with checker board method.


When two different genes came from the same parent they tend to remain together.

Write the observed phenotypic ratio.


Telocentric chromosome differs from acrocentric chromosome in that ____________.


Read the following statements regarding 'X and Y' chromosomes and select the correct option.

P - Due to presence of large amount of euchrornatin X chromosome is genetically more active.

Q - Due to presence of small amount of heterochromatin Y chromosome is genetically more active.


From the following identify the INCORRECT statement/s with respect to the chromosomes.

i. Chromosomes are capable of self replication and play vital role in heredity, mutation, variation, and evolutionary development of eukaryotic species.

ii. Chromosomes are visible during cell division.

iii. Chemically eukaryotic chromosomes are made of mRNA, histone and non-histone proteins.

iv. The number of chromosomes varies within the population of a particular species.


Which of the following does NOT agree with chrotnosomal theory of inheritance?


Extranuclear inheritance is a consequence of presence of genes in ______.


Experimental verification of ‘chromosomal theory of inheritance’ was done by ______.


Which of the following sentences are correct?

1. The offspring exhibit only parental combinations due to incomplete linkage

2. The linked genes exhibit some crossing over in complete linkage 

3. The separation of two linked genes are possible in incomplete linkage

4. Crossing over is absent in complete linkage


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×