Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

20 Cards in this Set

  • Front
  • Back
alternative forms of a gene for each variation of a trait of an organism
Crossing over
exchange of genetic material between non-sister chromatids from homologous chromosome during prophase I of meiosis; results in new allele combinations
observed trait of an organism that mask the recessive form of a trait
trait of an organism that can be masked by the dominant form of a trait
The genetic constitution of an organism with respect to a trait.
outward appearance of an organism, regardless of its genes
when there are two different alleles for a trait
when there are two identical alleles for a trait
offspring formed by parents having different forms of a specific trait
Law of independent assortment
Alleles of different genes are assorted independently of one another during the formation of gametes.
transfer of male pollen grains to the pistil of a flower
Situation in which two different alleles for a genetic trait are both expressed
incomplete dominance
A form of intermediate inheritance in which heterozygous alleles are both expressed, resulting in a combined phenotype.
(pink flowers)
law of segregation
Alleles segregate from one another during the formation of gametes.
monohybrid cross
Cross involving parents differing in only one trait.
test cross
used to determine whether an individual that displays a dominant phenotype is homozygous or heterozygous
true breeding
sex-influenced trait
characteristic may appear in both sexes but expression of the phenotype differs in female and male
punnet square
diagram used to predict the probabilities of certain phenotypes and genotypes
pedigree chart
chart which shows the phenotype and genotype of past generations