Question

1) What are homologous chromosomes? What does it mean that they are considered homologous? (2 pts)...

1) What are homologous chromosomes? What does it mean that they are considered homologous? (2 pts)

2) What is an allele? Describe the difference between dominant and recessive alleles? (2 pts)

3) Imagine that there is a species of flower whose phenotype is either white or red. The red allele (R) is dominant and the white allele (r) is recessive.

  1. If you see a white flower, what is its genotype? Explain your reasoning. (1 pts)

  2. If you see a red flower, what are its possible genotypes? Explain your reasoning. (1 pts)

  3. Use a Punnett square to cross a homozygous recessive flower with a homozygous dominant flower. (1 pts)

  4. From the Punnett square above, what are the genotypic and phenotypic ratios of the offspring? (1 pts)

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