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A gene in Hereford cattle has the alleles H, having horns, and h, being hornless - VCE - SSCE Biology - Question 2 - 2010 - Paper 1
Question 2
A gene in Hereford cattle has the alleles H, having horns, and h, being hornless. Some farmers choose to humanely remove the horns as horns can be used to injure oth... show full transcript
Worked Solution & Example Answer:A gene in Hereford cattle has the alleles H, having horns, and h, being hornless - VCE - SSCE Biology - Question 2 - 2010 - Paper 1
Step 1
carry at least one 'h' allele.
Answer
In this cross, Iris is homozygous recessive (hh) since she is hornless. Stanley is hornless as well, which indicates he can have the genotype (hh) since hornless is recessive. Therefore, every offspring would inherit one 'h' allele from each parent, ensuring that they will all carry at least one 'h' allele.