Module 6- Patterns of inheritance Flashcards
1
Q
what are some environmental causes of variation in plants?
A
-chlorosis (yellowing leaves)
-etiolation (long thin growth)
2
Q
what are some genetic causes of variation?
A
-gene mutations
-chromosome mutations
-meiosis/sexual reproduction
-inherited combination of alleles
3
Q
what is discontinuous variation?
A
4
Q
what is continuous variation?
A
5
Q
what are the genetic explanations for discontinuous variations?
A
6
Q
what is monogenic inheritance?
A
Characteristics which are controlled by the expression of a single gene
7
Q
what will the ratio of phenotypes if both parents are heterozygous at both gene loci?
A
9:3:3:1……….unless there’s something fishy going on
