NCERT Class 12 Chapter 5 Exam Questions & Answers 2024/2025

NCERT Class 12 Chapter 5 Exam Questions & Answers 2024/2025 genes - ANSWERSunits of inheritance. They contain the information that is required to express a particular trait in an organism alleles - ANSWERSGenes which code for a pair of contrasting traits Law of Dominance - ANSWERS(i) Characters are controlled by discrete units called factors. (ii) Factors occur in pairs. (iii) In a dissimilar pair of factors one member of the pair dominates (dominant) the other (recessive). Law of Segregation - ANSWERSalleles do not show any blending and that both the characters are recovered as such in the F2 generation though one of these is not seen at the F1 stage a gamete receives only one of the two factors. Of course, a homozygous parent produces all gametes that are similar while a heterozygous one produces two kinds of gametes each having one allele with equal proportion dog flower - ANSWERSSnapdragon or Antirrhinum sp. Incomplete Dominance - ANSWERSsometimes the F1 had a phenotype that did not resemble either of the two parents and was in between the two. The inheritance of flower colour in the dog flower Co-dominance - ANSWERSF1 generation resembles both parents types of red blood cells that determine ABO blood grouping in human beings chromosomal theory of inheritance - ANSWERSWalter Sutton and Theodore Boveri noted that the behaviour of chromosomes was parallel to the behaviour of genes and used chromosome movement