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The chromosomes shown carry (A) different genes and different alleles - HSC - SSCE Biology - Question 14 - 2016 - Paper 1
Question 14
The chromosomes shown carry (A) different genes and different alleles. (B) different genes and the same alleles. (C) the same genes and different alleles. (D) the s... show full transcript
Worked Solution & Example Answer:The chromosomes shown carry (A) different genes and different alleles - HSC - SSCE Biology - Question 14 - 2016 - Paper 1
Step 1
the same genes and different alleles
Answer
In this question, we must analyze the nature of the chromosomes depicted. The answer option (C) indicates that the chromosomes contain the same genes but differ in their alleles. This is characteristic of homologous chromosomes, which carry genes for the same traits but may have different variations (alleles) of those genes. This can be illustrated using concepts such as:
- Genes: Segments of DNA that determine specific traits.
- Alleles: Different forms of a gene that can exist at a specific locus.
Thus, chromosomes that are homologous have identical loci but can possess different alleles, making (C) the correct response.