Cp Bio 2 - Unit 3 Rebate (Spring 2014)

12 Questions | By MrMackRH | Last updated: May 20, 2014 | Total Attempts: 39

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Questions and Answers

1.

If a pea plant were homozygous recessive for height, how would its alleles be represented?
- A.
  
  Tt
- B.
  
  TT
- C.
  
  Tt
- D.
  
  TT
2.

A plant that is homozygous for red flowers (rr) is crossed with a plants that is homozygous for white flowers (ww). In the case of incomplete dominance, the flowers of the offspring will be ___.
- A.
  
  Red and white
- B.
  
  White only
- C.
  
  Red only
- D.
  
  Pink only
3.

The term for a cross that involves just one trait, such as flower color, is ___.
- A.
  
  A homozygous cross
- B.
  
  A test cross
- C.
  
  A monohybrid cross
- D.
  
  A dihybrid cross
4.

Hair color and eye color are examples of a person's
- A.
  
  Recessive traits.
- B.
  
  Dominant alleles.
- C.
  
  Genotype.
- D.
  
  Phenotype.
5.

What do the letters inside the grid of a Punnett square represent?
- A.
  
  Phenotypes of parents
- B.
  
  Genotypes of offspring
- C.
  
  Test-crosses of offspring
- D.
  
  Chromosomes of parents
6.

Which law states that organisms inherit two copies of each gene and donate one copy to each of their offspring?
- A.
  
  Law of genetic linkage
- B.
  
  Law of segregation
- C.
  
  Law of independent assortment
- D.
  
  Law of inheritance
7.

Recessive alleles may not be expressed because they are
- A.
  
  Masked by the dominant allele.
- B.
  
  The least common allele in a population.
- C.
  
  The most common allele in a population.
- D.
  
  Harmful to the organism.
8.

Two parents have the genotype Gg for a genetic disorder caused by a dominant allele. What is the chance that any of their children will inherit the disorder?
- A.
  
  25%
- B.
  
  50%
- C.
  
  75%
- D.
  
  100%
9.

For an XX female to express a recessive sex-linked trait, she must have
- A.
  
  A Y chromosome.
- B.
  
  An inactivated allele.
- C.
  
  Two recessive alleles.
- D.
  
  Two dominant alleles.
10.

Any of the alternative forms of a gene that occurs at a specific place on a chromosome are known as ___.
- A.
  
  Alleles
- B.
  
  Genes
- C.
  
  Chromosomes
- D.
  
  Recessive traits
11.

A chart or "family tree" that tracks which members of a family have a particular trait is called a ___.
- A.
  
  Pedigree
- B.
  
  Punnett square
- C.
  
  Genetic linkage
- D.
  
  DNA sequence
12.

___ studied traits of pea plants and discovered the two fundamental laws of genetics.
- A.
  
  Mendel
- B.
  
  Watson and Crick
- C.
  
  Mack
- D.
  
  Einstein