science
Grade-10
Easy
Question
Suppose the sperm of a dog contains 5 chromosomes. Which of the given statement is correct?
- The animal has 5 chromosomes in its body cells.
- 10 sister chromatids will be there in each sperm cell.
- 10 homologous chromosome pairs are generally there in animal cells.
- 20 sister chromatids per cell in the G2 phase.
Hint:
Each sperm cell will receive one-fourth of the chromosome from the "2n" spermatogonia.
The correct answer is: 20 sister chromatids per cell in the G2 phase.
- Spermatogonia is the primary cell from which the sperms are produced following spermatogenesis
- The steps of spermatogenesis are as follows:
- Spermatogonia undergoes mitosis to form primary spermatocyte
- The primary spermatocyte will undergo meiosis I to produce two haploidsecondary spermatocytes
- The secondary spermatocytes will undergo meiosis II to produce four haploid spermatids
- The sperms are produced from spermatids
- As given in the question, a sperm contains 5 chromosomes
- The sperm would have received one-fourth of the chromosomes from the spermatogonia (which has 2n chromosomes)
- Hence, the number of chromosomes will be 20 sister chromatids per cell following G2 phase
Related Questions to study
science
Select the correct statement.
Select the correct statement.
scienceGrade-10
science
Haploid word comes from _______ word.
Haploid word comes from _______ word.
scienceGrade-10
science
Chromosome A includes genes for an eye color of black.
Chromosome B comprises genes for hair color of black, and
Chromosome C has genes for an eye color of grey.
Chromosome A includes genes for an eye color of black.
Chromosome B comprises genes for hair color of black, and
Chromosome C has genes for an eye color of grey.
scienceGrade-10
science
Label the diagram from top to bottom.
Label the diagram from top to bottom.
scienceGrade-10
science
Select the correct match.
Select the correct match.
scienceGrade-10
science
Label part 1 in the given image.
Label part 1 in the given image.
scienceGrade-10
science
What is the name of part 1 in the given image?
What is the name of part 1 in the given image?
scienceGrade-10
science
Observe the image and select the answer.
Observe the image and select the answer.
scienceGrade-10
science
A cell with ‘n’ number of chromosomes is called as _________.
A cell with ‘n’ number of chromosomes is called as _________.
scienceGrade-10
science
_________ is the way animal produces the same offspring.
_________ is the way animal produces the same offspring.
scienceGrade-10
science
Which of the following statement is correct?
Which of the following statement is correct?
scienceGrade-10
science
Which of the following is the characteristic feature of a living thing?
Which of the following is the characteristic feature of a living thing?
scienceGrade-10
science
There are _____ chromosomes in human beings.
There are _____ chromosomes in human beings.
scienceGrade-10
science
Select the incorrect statement.
Select the incorrect statement.
scienceGrade-10
science
Mitosis is the method by which eukaryotic cells
Mitosis is the method by which eukaryotic cells
scienceGrade-10
