Linkage (Leaving Cert Biology): Quizzes
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11 questions from this quiz
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Practise the questions
11 questions from this quiz
What is linkage in genetics?
What is linkage in genetics?
Two genes on the same chromosome
Why do linked genes tend to be inherited together?
Why do linked genes tend to be inherited together?
They do not separate during meiosis
How are linked genes passed into gametes?
How are linked genes passed into gametes?
As a unit
What ratio occurs for non-linked heterozygous dihybrid x homozygous recessive?
What ratio occurs for non-linked heterozygous dihybrid x homozygous recessive?
1:1:1:1
What ratio occurs for non-linked heterozygous dihybrid x heterozygous dihybrid?
What ratio occurs for non-linked heterozygous dihybrid x heterozygous dihybrid?
9:3:3:1
What ratios do linked genes typically produce?
What ratios do linked genes typically produce?
1:1 or 3:1
Which law do linked genes violate?
Which law do linked genes violate?
Law of Independent Assortment
What gametes can TtPp produce when T is linked to P and t is linked to p?
What gametes can TtPp produce when T is linked to P and t is linked to p?
TP or tp only
What phenotypic ratio resulted from the linked genes cross in the example?
What phenotypic ratio resulted from the linked genes cross in the example?
1:1
How do linked genes affect variation in offspring?
How do linked genes affect variation in offspring?
Reduce variation
What does Mendel's Law of Independent Assortment state?
What does Mendel's Law of Independent Assortment state?
Either factor of a pair can recombine with either of another pair