Genetics Flashcards
How is a zygote formed
When two gametes (sex cells ) fuse during fertilisation
What is a DNA of an organism
A genome
How many chromosomes in a human
23
How many sets of chromosomes are there
Two sets of 23 making 46
What does mitosis produce
Diploid cells
What produces gametes
Meiosis
What does the nuclei contain
DNA
What are the four bases of DNA
Adenine (A), thymine (T) ,cytosine(C) and guanine (G)
What are the pairs for DNA strands
A and T
C and G
What do phosphate and sugars form
The backbone of DNA strands
What is an alleles
Is is the different form of genes
What do two of your chromosomes determine
What sex you are
What sets of chromosomes does a female have
Two X sets
What chromosomes sets does a male have
One set of X and one set of Y
What is meneline
It is a protein hair eyes and skin a darker colour
When does mutation occour
During cell division
