Question

Researchers studying leaf shape in a plant found six independent recessive mutations resulting in serrated leaves. They found the following results of a complementation test, + denoting wt leaves in the progeny of crosses using pollen and ova from homozygotes for each mutation. (table is presented like this in the question) Table 1 Complementation analysis for 6 mutations 1 2 3 4 5 6 1 - + + + + + 2 - + + + + 3 - + + - 4 - + + 5 - + 6 - Based on the data in Table 1, how many genes were found to contribute to leaf shape? Group of answer choices A) 5 B) 4 C) 2 D) 1 E) 6

          Researchers studying leaf shape in a plant found six independent
recessive mutations resulting in serrated leaves.  They
found the following results of a complementation test, + denoting
wt leaves in the progeny of crosses using pollen and ova from
homozygotes for each mutation. (table is presented like this in the
question)
Table 1 Complementation analysis for 6 mutations
1
2
3
4
5
6
1
-
+
+
+
+
+
2
-
+
+
+
+
3
-
+
+
-
4
-
+
+
5
-
+
6
-
Based on the data in Table 1, how many genes were found to
contribute to leaf shape?
Group of answer choices
A) 5
B) 4
C) 2
D) 1
E) 6

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Added by Purificaci-N B.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Sri K

03/26/2023

Step 1

In this test, two homozygous recessive individuals with the same phenotype (in this case, serrated leaves) are crossed. If the progeny have the wild-type (wt) phenotype (in this case, non-serrated leaves), it means that the mutations are in different genes and Show more…

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Researchers studying leaf shape in a plant found six independent recessive mutations resulting in serrated leaves. They found the following results of a complementation test, + denoting wt leaves in the progeny of crosses using pollen and ova from homozygotes for each mutation. (table is presented like this in the question) Table 1 Complementation analysis for 6 mutations 1 2 3 4 5 6 1 - + + + + + 2 - + + + + 3 - + + - 4 - + + 5 - + 6 - Based on the data in Table 1, how many genes were found to contribute to leaf shape? Group of answer choices A) 5 B) 4 C) 2 D) 1 E) 6

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