which diagram correctly shows how homozygous alleles are found on homologous chromosomes?\naa\n\naa
which diagram correctly shows how homozygous alleles are found on homologous chromosomes?\naa\n\naa
Answer
Explanation:
Step1: Define homozygous alleles.
An individual is homozygous for a gene if they have two identical alleles for that gene at a specific locus on homologous chromosomes (e.g., AA or aa).
Step2: Define heterozygous alleles.
An individual is heterozygous for a gene if they have two different alleles for that gene at a specific locus on homologous chromosomes (e.g., Aa).
Step3: Analyze the first diagram.
The first diagram is labeled "Aa". This notation represents a heterozygous genotype, as it consists of two different alleles: one 'A' and one 'a'.
Step4: Analyze the second diagram.
The second diagram is labeled "aa". This notation represents a homozygous genotype, as it consists of two identical alleles: both are 'a'.
Step5: Identify the diagram showing homozygous alleles.
The question asks to identify the diagram that correctly shows homozygous alleles. Based on the definitions, the diagram labeled "aa" represents a homozygous condition.
Answer:
The second diagram (labeled "aa") correctly shows homozygous alleles.