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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा १२

A B B C C D E F G H I From the above figure identify the type of mutation and explain it. - Botany

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प्रश्न

A B B C C D E F G H I

From the above figure identify the type of mutation and explain it.

एक पंक्ति में उत्तर

उत्तर

In reverse tandem duplication, the duplicated segment is located immediately after the normal segment but the gene sequence other will be reversed.

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अध्याय 3: Chromosomal Basis of Inheritance - Evaluation [पृष्ठ ९०]

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सामाचीर कलवी Botany [English] Class 12 TN Board
अध्याय 3 Chromosomal Basis of Inheritance
Evaluation | Q 36 | पृष्ठ ९०
सामाचीर कलवी Biology (Botany) [English] Class 12 TN Board
अध्याय 3 Chromosomal Basis of Inheritance
Evaluation | Q 17 | पृष्ठ ६७

संबंधित प्रश्न

If the number of chromosomes in an endosperm cell is 27, what will be the chromosome number in the definitive nucleus?

  1. 9
  2. 18
  3. 27
  4. 36

Name the type of cell division involved in the production of sperms by honey bees.


Classify the chromosomes on the basis of position of centromere.


Distinguish between X and Y chromosomes.


Define the Homologous chromosomes


If the haploid number in a cell is 18. The double monosomic and trisomic number will be


Match the column I (Type of chromosome) with column II (name of chromosome).

  Type of chromosome   Name of chromosome
i. P. Acrocentric
ii. Q. Telocentric
iii. R. Metacentric
iv. S. Sub-metacentric

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.


A gene pair hides the effect of another. The phenomenon is ______.


Extra nuclear chromosomes occur in ______.


What would be the genotype of the parents if the offspring have the phenotypes in 1:1 proportion?


What are minisatellites?


During mitosis, chromosomes distribution to the daughter cell is ______.


Who postulated the 'Chromosomal theory of inheritance'?


Discuss in detail the contributions of Morgan and Sturvant in the area of genetics.


Which of the following is sex chromosomal disorder?


Consider the following information and answer the question that follows:

  • Reshma’s mother is normal, but her father is suffering from PKU.
  • Reshma is suffering from PKU. She has two younger brothers who are identical twins; both are suffering from PKU. Reshma’s two elder sisters are normal.
  • Reshma marries Robert, who is normal. Reshma gives birth to a son named Jason who is normal. After some time, Reshma and Robert have two more children: a daughter with symptoms of PKU and a son without any symptoms of PKU.

Make a single pedigree chart using the above information to show the pattern of inheritance of phenylketonuria (PKU) in the family of Reshma.


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