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Select the correct statement from the ones given below with respect to dihybrid cross.
- a)Tightly linked genes on the same chromosome show higher recombinations.
- b)Genes far apart on the same chromosome show very few recombinations.
- c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.
- d)Tightly linked genes on the same chromosome show very few recombinations.
Correct answer is option 'D'. Can you explain this answer?
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Select the correct statement from the ones given below with respect to...
Tightly linked genes show no or very few recombinations, whereas loosely linked genes or genes far apart show high number of recombinations
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Select the correct statement from the ones given below with respect to...
Tightly linked genes on the same chromosome show very few recombinations.
In a dihybrid cross, two different genes located on the same chromosome are considered. The term "linkage" refers to the tendency of these genes to be inherited together due to their physical proximity on the chromosome. The level of linkage between two genes determines the frequency of recombination events that occur during meiosis. Recombination, or the exchange of genetic material between homologous chromosomes, leads to the formation of new combinations of alleles.
When genes are tightly linked, meaning they are located very close together on the same chromosome, the likelihood of recombination occurring between them is significantly reduced. This is because the physical proximity of the genes makes it less likely for crossing over to happen between them. Crossing over is the exchange of genetic material between non-sister chromatids during meiosis, and it is one of the main mechanisms by which recombination takes place.
Explanation:
When genes are tightly linked, the chance of them being separated during crossing over is low, resulting in very few recombinations. This is because crossing over typically occurs between genes that are farther apart on the same chromosome. The closer two genes are to each other, the less likely they are to be separated by crossing over. Therefore, tightly linked genes show very few recombinations.
Example:
For example, let's consider two genes A and B located closely on the same chromosome. If they are tightly linked, they are likely to be inherited together without much recombination. In this case, if an individual is heterozygous for both genes (AaBb), the gametes produced during meiosis will predominantly have the parental combinations AB and ab. Only a small proportion of gametes, resulting from rare recombination events, will have the non-parental combinations Ab and aB.
Conclusion:
In summary, tightly linked genes on the same chromosome show very few recombinations. This is because their close physical proximity reduces the likelihood of crossing over and the exchange of genetic material between them during meiosis. On the other hand, genes that are far apart on the same chromosome are more likely to undergo recombination events, leading to a higher frequency of new combinations of alleles.
In a dihybrid cross, two different genes located on the same chromosome are considered. The term "linkage" refers to the tendency of these genes to be inherited together due to their physical proximity on the chromosome. The level of linkage between two genes determines the frequency of recombination events that occur during meiosis. Recombination, or the exchange of genetic material between homologous chromosomes, leads to the formation of new combinations of alleles.
When genes are tightly linked, meaning they are located very close together on the same chromosome, the likelihood of recombination occurring between them is significantly reduced. This is because the physical proximity of the genes makes it less likely for crossing over to happen between them. Crossing over is the exchange of genetic material between non-sister chromatids during meiosis, and it is one of the main mechanisms by which recombination takes place.
Explanation:
When genes are tightly linked, the chance of them being separated during crossing over is low, resulting in very few recombinations. This is because crossing over typically occurs between genes that are farther apart on the same chromosome. The closer two genes are to each other, the less likely they are to be separated by crossing over. Therefore, tightly linked genes show very few recombinations.
Example:
For example, let's consider two genes A and B located closely on the same chromosome. If they are tightly linked, they are likely to be inherited together without much recombination. In this case, if an individual is heterozygous for both genes (AaBb), the gametes produced during meiosis will predominantly have the parental combinations AB and ab. Only a small proportion of gametes, resulting from rare recombination events, will have the non-parental combinations Ab and aB.
Conclusion:
In summary, tightly linked genes on the same chromosome show very few recombinations. This is because their close physical proximity reduces the likelihood of crossing over and the exchange of genetic material between them during meiosis. On the other hand, genes that are far apart on the same chromosome are more likely to undergo recombination events, leading to a higher frequency of new combinations of alleles.
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Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer?
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Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer?.
Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Select the correct statement from the ones given below with respect to dihybrid cross.a)Tightly linked genes on the same chromosome show higher recombinations.b)Genes far apart on the same chromosome show very few recombinations.c)Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.d)Tightly linked genes on the same chromosome show very few recombinations.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
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