Inheritance and Variation Flashcards
List 2 traits that differ humans
1.hair colour
2.eye colour
What is sexual reproduction?
The fusion of Gametes to form a Zygote
what is the male human gamete?
Sperm
Which has greatest variation Sexual or Asexual Reproduction ,and why?
Sexual ,there are codes taken from two people
What is variation?
The differences between members of the same species
What is mutation?
A change in the sequence of DNA
What are two factors that affect variation?
1.Genetic
2.Environment
Spell DNA
DEOXYRIBONUCLEIC Acid
what shape does DNA have?
Double Helix
What are amino acids?
Building blocks for protein
Explain what DNA tells amino acids to do?
Tells the shape that it has to make
What are chromosomes?
Lengths of DNA wrapped in protein
What are genes?
Code for a protein
How many pairs of chromosomes does a human have?
23
Who is the Father of genetics?
Gregory Mendel