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Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation?
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Which of the following will not result in variations among siblings? A...
Introduction:
In sexually reproducing organisms, siblings are individuals who share at least one parent. While siblings inherit genetic material from their parents, variations can arise due to several factors. The question asks which of the following factors will not result in variations among siblings: independent assortment, crossing over, linkage, or mutation. Let's examine each factor in detail.
1. Independent Assortment:
Independent assortment is the random distribution of homologous chromosomes during meiosis I. This process ensures that each gamete receives a unique combination of chromosomes. Therefore, independent assortment leads to variations among siblings as the combinations of chromosomes inherited from each parent differ.
2. Crossing Over:
Crossing over occurs during meiosis I when segments of homologous chromosomes exchange places. This process results in the shuffling of genetic material between chromosomes, creating new combinations of alleles. As a result, crossing over introduces variations among siblings.
3. Linkage:
Linkage refers to the tendency of alleles on the same chromosome to be inherited together. When genes are closely located on a chromosome, they are less likely to undergo independent assortment and are often inherited as a unit. Therefore, linkage can also lead to variations among siblings as the combinations of linked alleles differ.
4. Mutation:
Mutation is a permanent change in the DNA sequence of a gene. It can occur spontaneously or due to exposure to mutagens. Mutations introduce new alleles into a population, which can be inherited by offspring. Consequently, mutations contribute to genetic variations among siblings.
Conclusion:
Among the given options, none will not result in variations among siblings. Independent assortment, crossing over, linkage, and mutation all contribute to genetic variations among siblings. These processes are essential for the generation of genetic diversity within populations, allowing for adaptation and evolutionary change over time.
In sexually reproducing organisms, siblings are individuals who share at least one parent. While siblings inherit genetic material from their parents, variations can arise due to several factors. The question asks which of the following factors will not result in variations among siblings: independent assortment, crossing over, linkage, or mutation. Let's examine each factor in detail.
1. Independent Assortment:
Independent assortment is the random distribution of homologous chromosomes during meiosis I. This process ensures that each gamete receives a unique combination of chromosomes. Therefore, independent assortment leads to variations among siblings as the combinations of chromosomes inherited from each parent differ.
2. Crossing Over:
Crossing over occurs during meiosis I when segments of homologous chromosomes exchange places. This process results in the shuffling of genetic material between chromosomes, creating new combinations of alleles. As a result, crossing over introduces variations among siblings.
3. Linkage:
Linkage refers to the tendency of alleles on the same chromosome to be inherited together. When genes are closely located on a chromosome, they are less likely to undergo independent assortment and are often inherited as a unit. Therefore, linkage can also lead to variations among siblings as the combinations of linked alleles differ.
4. Mutation:
Mutation is a permanent change in the DNA sequence of a gene. It can occur spontaneously or due to exposure to mutagens. Mutations introduce new alleles into a population, which can be inherited by offspring. Consequently, mutations contribute to genetic variations among siblings.
Conclusion:
Among the given options, none will not result in variations among siblings. Independent assortment, crossing over, linkage, and mutation all contribute to genetic variations among siblings. These processes are essential for the generation of genetic diversity within populations, allowing for adaptation and evolutionary change over time.
Community Answer
Which of the following will not result in variations among siblings? A...
Option ( C) Linkage...
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Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation?
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Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation?.
Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following will not result in variations among siblings? A) independent assortment B) crossing over C) linkage D) mutation?.
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