Page 145 - Science Course 3 (Book 1)

Mo4-L2: Key Concept Organizer

Direction: Complete this spider map with information about the four kinds of complex patterns of
inheritance discussed in the lesson. On each top line, list one of the patterns. On each bottom
line, give an example of a trait produced by that type of inheritance.

1. 2.

Complex
Patterns of
Inheritance

3. 4.

Direction: Answer each question on the lines provided.

5. What are three environmental factors that can influence plant phenotypes?

6. What causes a Siamese cat to have dark fur on some parts of its body?

7. Which factor determines the wing pattern and coloration of the map butterfly?

Mo4-L2: Key Concept Check

Direction: On the line before each definition, write the letter of the term that matches it correctly.
Each term is used only once.
1. threadlike structures in cells A. dominance I. genes
B. pedigree J. environmental factors
2. contain instructions for traits
C. genotype K. alleles
3. two different forms of a gene D. heterozygous L. multiple alleles
E. chromosomes M. recessiveness
4. outward appearance
F. codominance N. polygenic inheritance
5. determines outward appearance G. homozygous O. Punnett square
H. incomplete dominance P. phenotype
6. represented by uppercase letters
7. represented by lowercase letters
8. RR
9. Rr

10. shows possible outcomes of genetic crosses
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