Sex Determination
The process of sex determination is influenced by genetic factors that determines the sex of the offspring.
- The determination of the sex of a newborn, varies among different species, with each utilizing a unique approach. In some species, environment influences the sex of their offspring implying genetic factors do not exclusively determine sex.
- Human chromosomes are present in pairs, with one copy inherited from each parent.
- 22 pairs of such chromosomes are called an autosomal chromosomes. One pair of chromosomes that determines the sex of an individual is known Sex chromosome.
- Women have XX chromosomes and Men have XY chromosomes(The Y chromosome is smaller than the X chromosome).
- The sex of a child depends on the chromosome they receive from their father.
Heredity and Evolution Notes Class 10 Notes
Hereditary and Evolution Class 10 Notes: Hereditary is the transmission of traits or characters from parents to their offspring through genes. Offspring may not inherit the same combination of genes from their parents which can result in variations in physical characteristics. This variation causes rise to the evolution of species.
The CBSE Science Heredity and Evolution Class 10 Notes are provided here for quick revision. We have also provided Heredity and Evolution Class 10 important questions for last-minute preparation.
Table of Content
- Heredity
- Mendels Experiment
- Inheritance
- How do these Traits get Expressed
- Sex Determination
- Heredity and Evolution Class 10 Important Questions for Last-Minute Preparation