Photo AI
From the outcome of the testers of the offspring of cross 1 it can be concluded that A - VCE - SSCE Biology - Question 11 - 2003 - Paper 1
Question 11
From the outcome of the testers of the offspring of cross 1 it can be concluded that A. the genotype of the F1 cross is $A^f$. B. the frizzy locus and the albino l... show full transcript
Worked Solution & Example Answer:From the outcome of the testers of the offspring of cross 1 it can be concluded that A - VCE - SSCE Biology - Question 11 - 2003 - Paper 1
Step 1
A. the genotype of the F1 cross is $A^f$
Answer
This statement suggests that the F1 generation is heterozygous for agouti coat color, where represents the dominant allele and represents the recessive allele resulting in albino coat color. However, we need to analyze the data to confirm this.
Step 2
B. the frizzy locus and the albino locus are assorting independently.
Answer
According to Mendel's law of independent assortment, this statement would only be true if the loci in question are located on different chromosomes. The data suggests that both traits indeed show independence in segregation.
Step 3
C. the map distance between the albino and frizzy loci is 10 map units.
Answer
This answer can be derived from the number of recombinant offspring compared to the total offspring produced. Assuming a standard relationship, finding 10% of offspring as recombinants indicates that the loci are approximately 10 map units apart.
Step 4
D. the agouti, non-frizzy offspring of the testers, are called recombinant offspring.
Answer
This statement is misleading. Remarkably, agouti and non-frizzy traits being expressed in the offspring of testers indicate that these may be parental types rather than recombinant, suggesting close linkage rather than separation.