H. Bio 2: Genetics

7 Written Questions

1. - each gamete contins a copy of each chromosome
   - each chromosome is made up of genes
   - each gene consists of an allele
   - each allele in the Punnett Squares represents a gene
2. in a pair of genes, the dominant trait is expressed; one trait is "masked" by other trait
3. additive effect of 2 or more gene loci on a single phenotype; ex: height, skin color, weight
4. genetic makeup; specific gene that makes up allele
5. traits blend
6. alternate forms of the same gene
7. scientific study of heredity and hereditary variations

6 Multiple Choice Questions

1. equal expression of both alleles; ex: blood type
   1. gene
   2. codominance
   3. law of dominance
   4. homozygous
2. particular site on a chromosome where gene is found
   1. gene
   2. pure
   3. alleles
   4. locus
3. father of genetics; 19th century monk; argued that parents pass onto their offspring discrete heritable factors; cross-bred pea plants
   1. gene
   2. genotype
   3. linked genes
   4. Gregor Mendel
4. traits can separate and recombine independently of other traits
   1. law of dominance
   2. law of segregation
   3. linked genes
   4. law of independent assortment
5. segment on chromosome (3 N bases)
   1. genotype
   2. genetics
   3. pure
   4. gene
6. genes located on either sex chromosomes
   1. sex-linked traits
   2. genetics
   3. linked genes
   4. gene

6 True/False Questions

1. law of segregation → alleles from F1 separate and recombine in F2

   True        False

2. homozygous → 2 identical alleles for a given trait

   True        False

3. hybrid → homozygous individuals

   True        False

4. pure → homozygous individuals

   True        False

5. heterozygous → 2 diff alleles for a given trait

   True        False

6. linked genes → segment on chromosome (3 N bases)

   True        False