Genetics: Short Ans Type Concise Class 10 ICSE Biology Selina Solutions Ch-3. In this article you will get the solutions of Short Answer Type Questions as council latest syllabus. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.
Genetics: Short Ans Type Concise Class 10 ICSE Selina Solutions Ch-3
| Board | ICSE |
| Subject | Biology |
| Class | 10 |
| Book | Selina Concise |
| Chapter-3 | Genetics: Some Basic Fundamentals |
| Topics | Short Answer Type Questions |
| Session | 2024-25 |
Short Answer Type Questions on Genetics
Concise Biology Class 10 ICSE Selina Solutions Ch-3
Que-1: Rewrite the correct form of the statement by changing the first or the last word only:
(a) Duplicated chromosomes remain attached at a point termed as centrosome.
(b) The full complement of DNA of an organism is termed as genetics.
(c) The inheritable feature of an organism is termed as heredity.
(d) Terminal flower position is a dominant trait of pea flower.
(e) Alternative forms of a gene are called traits.
Sol:
(a) Duplicated chromosomes remain attached at a point termed as centromere.
(b) The full complement of DNA of an organism is termed as Genome.
(c) The inheritable feature of an organism is termed as character.
(d) Axillary flower position is a dominant trait of pea flower.
(e) Alternative forms of a gene are called Allele.
Que-2: Among lion, tiger and domestic cat, all the three have the same number of 38 chromosomes, yet they have different appearances. How do you account for such differences?
Sol: these are the result of the heredity units called genes which occur in chromosomes . Although The lion and the cat have the same number of chromosomes (38). Yet one is distinct from the other in body size, appearance, colour, behavior, etc. All such characteristics of an organism are the result of the genes located on the chromosomes
Que-3: List any three features of garden pea with their dominant and recessive traits
Sol: The three features of garden pea with their dominant and recessive
| Character | Dominant trait | Recessive trait |
|---|---|---|
| Size of plant | Tall | Dwarf |
| Seed Colour | Yellow | Green |
| Seed Shape | Round | Wrinkled |
Que-4: Explain why generally only the male child suffers from colour blindness and not the female?
Sol: Colour blindness is caused due to recessive genes, which occur on the ‘x’ chromosomes. Males have only one X chromosome. If there is recessive gene present on X chromosome, then the male will suffer from colour-blindness. Females have two X chromosomes. It is highly impossible that both the X chromosomes carry abnormal gene. Hence, if one gene is abnormal and since it is recessive, its expression will be masked by the normal gene present on the other X chromosome. Due to this reason, females are unlikely to suffer from colour-blindness.
–: End of Genetics: Short Ans Type Concise Class 10 ICSE Biology Selina Solutions Ch-3 :–
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