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Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on :-
- a)Homologous part of X–chromosome
- b)Non homologous part of X–chromosome
- c)All the autosome
- d)Y–chromosome
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Human embryo all the genetic instructions, it needed to become a male ...
The Y-chromosome carries SRY(sex determining region Y) gene which encodes TDF (Testis Determining Factor). The TDF serves as a transcription factor that binds to specific DNA sequence to start the process to develop the embryo into a male child. Loss of this gene hinders the development of testes and the embryo develop female gonads and remain sexually immature. So, the correct answer is option D.
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Human embryo all the genetic instructions, it needed to become a male ...
The correct answer is option 'D' which states that the master gene responsible for determining the sex of a human embryo is located on the Y chromosome.
The process of sexual differentiation in humans begins during embryonic development. Initially, all embryos have the potential to develop into either male or female individuals. The presence or absence of certain genes determines the development of male or female reproductive systems.
Here is a detailed explanation of why the correct answer is option 'D':
1. Sexual Differentiation:
- Sexual differentiation is the process by which an embryo develops into a male or female individual.
- It involves the development of primary and secondary sexual characteristics, such as the reproductive organs and the production of sex hormones.
2. Genetic Instructions:
- The genetic instructions required for sexual differentiation are present in the chromosomes of the embryo.
- Chromosomes are thread-like structures located within the nucleus of cells that carry genetic information in the form of genes.
3. Master Gene:
- The master gene, also known as the SRY gene (Sex-determining Region Y), is responsible for initiating the development of the male reproductive system.
- The SRY gene acts as a biological switch, turning on the expression of other genes involved in male sexual development.
- It is specifically located on the Y chromosome, which is one of the two sex chromosomes found in humans.
4. Y Chromosome:
- The Y chromosome is one of the two types of sex chromosomes, with the other being the X chromosome.
- In humans, males have one X chromosome and one Y chromosome (XY), while females have two X chromosomes (XX).
- The presence of the Y chromosome in a developing embryo triggers the expression of the SRY gene, leading to the development of male reproductive organs.
In summary, the master gene responsible for sexual differentiation in humans is located on the Y chromosome. Its presence triggers the development of the male reproductive system, while its absence results in the development of a female reproductive system.
The process of sexual differentiation in humans begins during embryonic development. Initially, all embryos have the potential to develop into either male or female individuals. The presence or absence of certain genes determines the development of male or female reproductive systems.
Here is a detailed explanation of why the correct answer is option 'D':
1. Sexual Differentiation:
- Sexual differentiation is the process by which an embryo develops into a male or female individual.
- It involves the development of primary and secondary sexual characteristics, such as the reproductive organs and the production of sex hormones.
2. Genetic Instructions:
- The genetic instructions required for sexual differentiation are present in the chromosomes of the embryo.
- Chromosomes are thread-like structures located within the nucleus of cells that carry genetic information in the form of genes.
3. Master Gene:
- The master gene, also known as the SRY gene (Sex-determining Region Y), is responsible for initiating the development of the male reproductive system.
- The SRY gene acts as a biological switch, turning on the expression of other genes involved in male sexual development.
- It is specifically located on the Y chromosome, which is one of the two sex chromosomes found in humans.
4. Y Chromosome:
- The Y chromosome is one of the two types of sex chromosomes, with the other being the X chromosome.
- In humans, males have one X chromosome and one Y chromosome (XY), while females have two X chromosomes (XX).
- The presence of the Y chromosome in a developing embryo triggers the expression of the SRY gene, leading to the development of male reproductive organs.
In summary, the master gene responsible for sexual differentiation in humans is located on the Y chromosome. Its presence triggers the development of the male reproductive system, while its absence results in the development of a female reproductive system.
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Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on :-a)Homologous part of X–chromosomeb)Non homologous part of X–chromosomec)All the autosomed)Y–chromosomeCorrect answer is option 'D'. Can you explain this answer?
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Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on :-a)Homologous part of X–chromosomeb)Non homologous part of X–chromosomec)All the autosomed)Y–chromosomeCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on :-a)Homologous part of X–chromosomeb)Non homologous part of X–chromosomec)All the autosomed)Y–chromosomeCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on :-a)Homologous part of X–chromosomeb)Non homologous part of X–chromosomec)All the autosomed)Y–chromosomeCorrect answer is option 'D'. Can you explain this answer?.
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