
The body cell of hamster has 44 chromosomes. How many chromosomes would the gamete of a hamster have?
Answer
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Hint: Hamsters are rodents belonging to the subfamily Cricetinae, which contains 19 species classified in seven genera. They have become established as popular small pets. The best-known species of hamster is the golden or Syrian hamster, which is the type most commonly kept as pets.
Complete answer:
A chromosome is a long DNA particle with part or the entirety of the hereditary material of an organic entity. Chromosomes are always in pairs in the body cell of hamster and gamete contain only one set of chromosomes. Hamster has 22 pairs of chromosomes so in gamete have one from each pair.As hamster body cell have 44 chromosomes its gamete will have half of 44 which is 22.
After fusion of both gamete one from male and second from female zygote forms and in zygote the chromosomes from each of the gamete combined to form the pairs of chromosomes which is just double of the chromosome in one gamete.
Thus the required answer is 22.
Note: An estimated 1 to 4 percent of a healthy male's sperm have abnormal numbers of chromosomes, or aneuploidy, that are caused by errors during cell division (meiosis) in the testis. And irregularities on the number of chromosomes causes abnormalities in humans.
Complete answer:
A chromosome is a long DNA particle with part or the entirety of the hereditary material of an organic entity. Chromosomes are always in pairs in the body cell of hamster and gamete contain only one set of chromosomes. Hamster has 22 pairs of chromosomes so in gamete have one from each pair.As hamster body cell have 44 chromosomes its gamete will have half of 44 which is 22.
After fusion of both gamete one from male and second from female zygote forms and in zygote the chromosomes from each of the gamete combined to form the pairs of chromosomes which is just double of the chromosome in one gamete.
Thus the required answer is 22.
Note: An estimated 1 to 4 percent of a healthy male's sperm have abnormal numbers of chromosomes, or aneuploidy, that are caused by errors during cell division (meiosis) in the testis. And irregularities on the number of chromosomes causes abnormalities in humans.
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