Assertion: Gens for different traits and same character segregate at the time of gamete formation. Reason: gametes are diploid in nature. 16
Answers
Answer:
According to the principle of segregation (first law of Mendelism), the two factors of a character that remain together in an individual do not get mixed up but keep their identity distinct, separate at the time of gametogenesis or sporogenesis, get randomly distributed to different offspring as per the principle of probability. Gametes carry a single factor or allele for a trait. The two Mendelian factors present in the Fl plants segregate during gamete formation. The principle of gametes because segregation of the two Mendelian factors of a trait results in gametes receiving only one factor out of a pair. As a result, gametes are always pure for a character.
Explanation:
Answer:
Assertion is correct but reason is not correct.
Explanation:
The law of segregation states that the two alleles controlling each character maintain identity in the organism but during the formation of gametes or spores by meiosis move apart due to separation of the homologous chromosomes which bear them, so that each gamete or spore receives only one allele of each character on random basis. Since, the gametes or spores possess one allele of each character, they are always pure. The law of segregation is, therefore, also called the law of purity of gametes/spores. Mendel's second law or the law of independent assortment states that the alleles of different characters located in different pairs of homologous chromosomes are independent of one another in their segregation during gamete formation and in coming together into the offspring by fertilization, both processes occurring randomly.