Question

How many phenotypes are produced from the Test cross of AaBbCC?

• A. 8
• B. 6
• C. 4
• D. 2

Answer 1

Answer: (C)

4

• In a testcross, an individual with an unknown genotype is crossed with a homozygous recessive individual to identify the zygosity of the former from the proportion of offspring phenotypes.
  
• Test cross of AaBbCC is AaBbCC x aabbcc as shown in the above image.
  

Therefore, four different phenotypes are produced in F1 as a result of this test cross.

So the correct option is '4'.