Chapter 4.6: Validation of the Chromosome Theory

Question 1

What is it called when males inherit trait from mother, females from father?

Answer 1

crisscrossed inheritance

Question 2

Define X-linked

Answer 2

gene carried by the X chromosome

Question 3

How do Mendel’s Laws Correlate with Chromosome Behavior During Meiosis? (3)

Answer 3

o Meiosis ensures that each gamete will contain only a single chromatid of a bivalent and thus only a single allele of any gene on that chromatid
o The independent behavior of two bivalents during meiosis means that the genes carried on different chromosomes will assort into gametes independently
o Both the random alignment of nonhomologous chromosomes and crossing-over contribute to the phenomenon of independent assortment

Question 4

Define crisscrossed inheritance

Answer 4

males inherit trait from mother, females from father