मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Sketch and Label the Structure of Chromosome.

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प्रश्न

Sketch and label the structure of chromosome.

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उत्तर

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2014-2015 (October)

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संबंधित प्रश्‍न

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


Distinguish between X and Y chromosomes.


The A and B genes are 10 cm apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?


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

Which of the following is a primary constriction?


Chromosomal theory of inheritance was put forth by ______


A plant having the genotype AABbCC will produce ______ kinds of gametes.


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


Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.


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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