The tusked beetle can be grey or black, and has tusk-like protrusions that can be either long or short. Assume that each trait is caused by a single gene in which one allele is completely dominant to the other and that these genes are independently assorting. The following table shows the resulting offspring produced by mating parents of the indicated phenotypes. Cross 1 Cross 2 Cross 3 Parent 1 black, long grey, long grey, short Parent 2 grey, short grey, long black, short Which colour (Grey or Black) is the dominant colour? black, short 13 Which tusk length (long or short) is the recessive length? 42 What would be an appropriate symbol for the black allele? What would be an appropriate symbol for the grey allele? 0 What would be an appropriate symbol for the long allele? What would be an appropriate symbol for the short allele? Offspring Phenotypes grey, short 11 9 0 black, long 12 0 0 grey, long 15 33 0

Human Anatomy & Physiology (11th Edition)
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The tusked beetle can be grey or black, and has tusk-like protrusions that can be either long or short. Assume that
each trait is caused by a single gene in which one allele is completely dominant to the other and that these genes are
independently assorting.
The following table shows the resulting offspring produced by mating parents of the indicated phenotypes.
Cross 1
Cross 2
Cross 3
Parent 1
black, long
grey, long
grey, short
Parent 2
grey, short
grey, long
black, short
Which colour (Grey or Black) is the dominant colour?
black, short
13
Which tusk length (long or short) the recessive length?
42
What would be an appropriate symbol for the black allele?
What would be an appropriate symbol for the grey allele?
0
What would be an appropriate symbol for the long allele?
What would be an appropriate symbol for the short allele?
Offspring Phenotypes
black, long
grey, short
11
9
0
12
0
0
grey, long
15
33
0
Transcribed Image Text:The tusked beetle can be grey or black, and has tusk-like protrusions that can be either long or short. Assume that each trait is caused by a single gene in which one allele is completely dominant to the other and that these genes are independently assorting. The following table shows the resulting offspring produced by mating parents of the indicated phenotypes. Cross 1 Cross 2 Cross 3 Parent 1 black, long grey, long grey, short Parent 2 grey, short grey, long black, short Which colour (Grey or Black) is the dominant colour? black, short 13 Which tusk length (long or short) the recessive length? 42 What would be an appropriate symbol for the black allele? What would be an appropriate symbol for the grey allele? 0 What would be an appropriate symbol for the long allele? What would be an appropriate symbol for the short allele? Offspring Phenotypes black, long grey, short 11 9 0 12 0 0 grey, long 15 33 0
Consider Cross 1: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include
appropriate slashes and semicolons, no spaces)
Consider Cross 2: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include
appropriate slashes and semicolons, no spaces)
Consider Cross 3: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include
appropriate slashes and semicolons, no spaces)
▷ View hint for Question 1
Transcribed Image Text:Consider Cross 1: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include appropriate slashes and semicolons, no spaces) Consider Cross 2: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include appropriate slashes and semicolons, no spaces) Consider Cross 3: What are the genotypes for Parent 1 (first blank) and Parent 2 (second blank)? (be sure to include appropriate slashes and semicolons, no spaces) ▷ View hint for Question 1
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