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From the data it is possible to conclude that A - VCE - SSCE Biology - Question 4 - 2006 - Paper 1
Question 4
From the data it is possible to conclude that A. spotted is recessive to clear. B. all of the clear offspring are heterozygous. C. two thirds of the marbled offsprin... show full transcript
Worked Solution & Example Answer:From the data it is possible to conclude that A - VCE - SSCE Biology - Question 4 - 2006 - Paper 1
Step 1
A. spotted is recessive to clear.
Answer
To determine if spotted is recessive to clear, we need to consider the inheritance patterns of the traits in question. If spotted individuals can produce clear offspring but clear individuals cannot produce spotted offspring, then it is conclusive that spotted is recessive.
Step 2
B. all of the clear offspring are heterozygous.
Answer
For a clear trait to exhibit heterozygosity in all offspring, both parents must contribute one allele that allows for this outcome. However, without specific data suggesting that all clear offspring are the result of heterozygous parents, this statement cannot be definitively concluded.
Step 3
C. two thirds of the marbled offspring in cross 3 are heterozygous.
Answer
If the ratio of marbled offspring in cross 3 suggests that two-thirds are exhibiting a phenotype that correlates with heterozygous genotypes, then this conclusion can be reached based on Mendelian inheritance patterns.
Step 4
D. the marbled parents in cross 1 have the same genotype as the marbled parents in cross 3.
Answer
To assert this, an analysis of the offspring's phenotypes and genotypes from both crosses is necessary. Without such data indicating the similarity in genotype, this claim remains unverified.