
Concept explainers
a.
To determine: The
Introduction: Genes have alternate forms known as alleles which are transmitted to offspring. If the two alleles are different then there is a hybrid at F1 generation. The dominant allele out of the two alleles expresses itself and determines the phenotype. The condition caused due to recessive allele will show its effect only in the homozygous recessive genotype.
b.
To predict: The outcome of genetic cross between two Nn individuals and list the genotype and phenotype ratios.
Introduction: During gamete formation, each pair of alleles of one gene segregates into gametes independently of the pair of alleles of other gene. This is based on law of independent assortment of genes. These two genes separate and enter two different gametes independent of the other. After the genetic cross, the allele combinations are predicted which determine the possible genotypes of the offspring.
c.
To predict: The outcome of genetic cross between an Nn and and an NN individual and list the genotype and phenotype ratios.
Introduction: During gamete formation, each pair of alleles of one gene segregates into gametes independently of the pair of alleles of other gene. This is based on law of independent assortment of genes. These two genes separate and enter two different gametes independent of the other. After the genetic cross, the allele combinations are predicted which determine the possible genotypes of the offspring.

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Chapter 9 Solutions
EBK DISCOVER BIOLOGY (SIXTH CORE EDITIO
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