ICSE Class 10 Biology
Question 2 of 11
Genetics — Some Basic Fundamentals — Question 4
Back to all questions(a) Difference between karyotype and karyokinesis —
| Karyotype | Karyokinesis |
|---|---|
| The complete set of chromosomes in the cells of an organism is its karyotype. | The division of the nucleus during mitosis is called karyokinesis. |
(b) Difference between autosomes and sex chromosomes
| Autosomes | Sex chromosomes |
|---|---|
| They determine the somatic traits. | They determine the sex of an organism. |
| They are numbered as 1 to 22. | They are recognized by the letters XO, XY, ZO, ZW. |
| They show Mendelian inheritance. | They do not show Mendelian inheritance. |
| Human show 22 pairs of autosomes. | Humans show only 1 pair of sex chromosome. |
(c) Difference between homozygous and heterozygous chromosomes
| Homozygous chromosomes | Heterozygous chromosomes |
|---|---|
| It has two same copies of the same allele coding for a particular trait. | It contains two different copies of alleles coding for a particular trait. |