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
Reading...
Front

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

image

Play button

image

Play button

image

Progress

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
Define:
Principle of Independant Assortment
Each trait is inherited independant of other traits.
Define:
Dihybrid
When considering two different traits at once.
What was Mendel's word for 'gene'.
Factor
Define:
Epistasis
When one gene hides the expression of another gene.
What would be the blood type of a person with homozygous recessive alleles. (ii)
O type blood
What are pedigrees and what are they used for?
Pedigrees are used to trace inheritance of a trait over several generations, and look like a family 'tree'.
Define:
Autosomal
Sex-linked
Autosomal-each gender just as likely to inherit a trait. (not sex-linked)
Sex-linked-one gender more likely to inherit a certain trait. (not autosomal)
What word explains why A and B can combine to form AB type blood?
Co-dominance
When there is a 6% chance of crossover between pieces of genetic information, how close are these pieces to each other? (Include the units)
6 map units
How many different gametes can be formed from:
GgRRJj
GRJ, GRj, gRJ, gRj
A total of 4 gametes can be formed.
Are X-linked abnormalities more common in males or females?
Males, because there is no way to 'hide' these abnormalities with another X chromosome the way a female can.
What is the scientific name for the fruit fly, which is used so often in genetic studies?
Drosophila
When considering a homozygous dominant being crossed with a homozygous recessive, why does the F1 generation never show characteristics of the homozygous recessive in a simple dominance relationship?
The F1 generation always inherit a dominant allele from the homozygous dominant, therefore the offspring can only be a carrier of the recessive allele.
Why cannot a male be carrier of a sex-linked trait?
Males cannot hide sex-linked traits because they have X and Y. They must express BOTH of these chromosomes, and traits aren't hidden like when considering a female
Can the environment alter your genetic makeup?
No