IIT JAM Exam > IIT JAM Questions > Which of the following is true for polyploidy...
Start Learning for Free
Which of the following is true for polyploidy?
- a)Modern wheat is a polyploidy
- b)Polyploids are rarely sterile
- c)Polyploidy is rare in animals because it interferes with their sex determination mechanism
- d)It makes the cell size large because the number of chromosomes increase in the nucleus.
Correct answer is option 'A,C,D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which of the following is true for polyploidy?a)Modern wheat is a poly...
Polyploids are sterile because of irregular segregation of chromosomes during meiosis. It may result in aneuploid gametes. The zygotes obtained always die and this inviability explains the sterility of polyploid organisms.
Most Upvoted Answer
Which of the following is true for polyploidy?a)Modern wheat is a poly...
Modern wheat is a polyploidy:
- Modern wheat is indeed a polyploidy. It is a result of hybridization between three different species of wheat, which led to the formation of a hexaploid wheat species known as Triticum aestivum. This hexaploid wheat has six sets of chromosomes, making it a polyploid.
Polyploids are rarely sterile:
- Polyploids can be either fertile or sterile. In some cases, polyploidy can lead to sterility due to difficulties in meiosis, the process of cell division that produces gametes (eggs and sperm). However, many polyploid species are fertile and can reproduce successfully. For example, modern wheat, mentioned earlier, is a fertile polyploid.
Polyploidy is rare in animals because it interferes with their sex determination mechanism:
- Polyploidy is indeed relatively rare in animals compared to plants. One reason for this rarity is that polyploidy can interfere with the sex determination mechanism in animals. In most animals, sex determination is controlled by specific genes located on sex chromosomes. Polyploidy can disrupt the balance of these genes, leading to abnormalities in sexual development. However, there are some exceptions to this generalization, as polyploidy has been observed in certain animal species like salamanders and frogs.
It makes the cell size large because the number of chromosomes increases in the nucleus:
- Polyploidy does generally lead to an increase in cell size. When an organism undergoes polyploidization, the number of chromosomes in its cells increases. This increase in chromosome number often results in larger cells and, consequently, larger organisms. Polyploidy can also affect other cellular and organismal processes, such as gene expression and metabolism.
In summary, the true statements about polyploidy are:
- Modern wheat is a polyploidy.
- Polyploids can be fertile or sterile.
- Polyploidy is relatively rare in animals due to its interference with the sex determination mechanism.
- Polyploidy often leads to an increase in cell size.
- Modern wheat is indeed a polyploidy. It is a result of hybridization between three different species of wheat, which led to the formation of a hexaploid wheat species known as Triticum aestivum. This hexaploid wheat has six sets of chromosomes, making it a polyploid.
Polyploids are rarely sterile:
- Polyploids can be either fertile or sterile. In some cases, polyploidy can lead to sterility due to difficulties in meiosis, the process of cell division that produces gametes (eggs and sperm). However, many polyploid species are fertile and can reproduce successfully. For example, modern wheat, mentioned earlier, is a fertile polyploid.
Polyploidy is rare in animals because it interferes with their sex determination mechanism:
- Polyploidy is indeed relatively rare in animals compared to plants. One reason for this rarity is that polyploidy can interfere with the sex determination mechanism in animals. In most animals, sex determination is controlled by specific genes located on sex chromosomes. Polyploidy can disrupt the balance of these genes, leading to abnormalities in sexual development. However, there are some exceptions to this generalization, as polyploidy has been observed in certain animal species like salamanders and frogs.
It makes the cell size large because the number of chromosomes increases in the nucleus:
- Polyploidy does generally lead to an increase in cell size. When an organism undergoes polyploidization, the number of chromosomes in its cells increases. This increase in chromosome number often results in larger cells and, consequently, larger organisms. Polyploidy can also affect other cellular and organismal processes, such as gene expression and metabolism.
In summary, the true statements about polyploidy are:
- Modern wheat is a polyploidy.
- Polyploids can be fertile or sterile.
- Polyploidy is relatively rare in animals due to its interference with the sex determination mechanism.
- Polyploidy often leads to an increase in cell size.
|
Explore Courses for IIT JAM exam
|
|
Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer?
Question Description
Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer?.
Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer?.
Solutions for Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for IIT JAM.
Download more important topics, notes, lectures and mock test series for IIT JAM Exam by signing up for free.
Here you can find the meaning of Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer?, a detailed solution for Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? has been provided alongside types of Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following is true for polyploidy?a)Modern wheat is a polyploidyb)Polyploids are rarely sterilec)Polyploidy is rare in animals because it interferes with their sex determination mechanismd)It makes the cell size large because the number of chromosomes increase in the nucleus.Correct answer is option 'A,C,D'. Can you explain this answer? tests, examples and also practice IIT JAM tests.
|
|
Explore Courses for IIT JAM exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup