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Questions and Answers
What is heredity?
What is heredity?
What is the branch of biology dealing with the principles and mechanism of inheritance and variation?
What is the branch of biology dealing with the principles and mechanism of inheritance and variation?
Where are genes located?
Where are genes located?
What process maintains the continuity of the gene pool?
What process maintains the continuity of the gene pool?
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Who is known as the 'Father of genetics'?
Who is known as the 'Father of genetics'?
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What causes variation among individuals of a species?
What causes variation among individuals of a species?
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What did Mendel call the units passed from parents to offspring?
What did Mendel call the units passed from parents to offspring?
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Which law of inheritance states that alleles for different traits are inherited independently?
Which law of inheritance states that alleles for different traits are inherited independently?
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In a dihybrid cross, how many different kinds of gametes do heterozygotes produce?
In a dihybrid cross, how many different kinds of gametes do heterozygotes produce?
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What term is used when neither of the two alleles is dominant and the phenotype of the heterozygote shows a mixture of the two parents' traits?
What term is used when neither of the two alleles is dominant and the phenotype of the heterozygote shows a mixture of the two parents' traits?
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Which of the following is NOT a blood group allele in humans controlled by the gene I?
Which of the following is NOT a blood group allele in humans controlled by the gene I?
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What is the purpose of a Test Cross in genetics?
What is the purpose of a Test Cross in genetics?
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Study Notes
Heredity and Genetics
- Heredity is the transmission of characteristics from parents to offspring through the passing of genetic information.
Branch of Biology
- The branch of biology that deals with the principles and mechanisms of inheritance and variation is Genetics.
Location of Genes
- Genes are located in the chromosomes of an organism's cells.
Continuity of Gene Pool
- The process that maintains the continuity of the gene pool is reproduction.
Father of Genetics
- Gregor Mendel is known as the 'Father of Genetics'.
Cause of Variation
- Variation among individuals of a species is caused by differences in their genetic makeup and the interaction of genes with the environment.
Units of Inheritance
- Mendel called the units passed from parents to offspring 'factors', which are now known as genes.
Law of Independent Assortment
- The law of inheritance that states that alleles for different traits are inherited independently is the Law of Independent Assortment.
Gametes in Dihybrid Cross
- In a dihybrid cross, heterozygotes produce 4 different kinds of gametes.
Incomplete Dominance
- The term used when neither of the two alleles is dominant and the phenotype of the heterozygote shows a mixture of the two parents' traits is Incomplete Dominance.
Blood Group Allele
- The allele 'AB' is NOT a blood group allele in humans controlled by the gene I.
Purpose of Test Cross
- The purpose of a Test Cross in genetics is to determine the genotype of an organism with a dominant phenotype.
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Description
Review important notes for the chapter Principles of Inheritance and Variation, essential for NEET Biology exam preparation. These notes cover key topics and concepts crucial for last-minute revision and exam success. Access comprehensive study materials on BYJU’S for further preparation.
