Reproduction And Genetics Flashcards
Asexual reproduction
Involves only one parent.
Cells from this parent divide and a new plant grows from these cells.
This plant is identical to the parent.
e.g. strawberries, potatoes, spider-plant, buttercup.
Genetics
Is the study of inheritance of characteristics
Inheritable characteristics
Many physical characteristics such as eye colour and shape of ears were inherited from your parents .
Chromosomes
The nucleus of each sex cell(gamete) contains 23 thread like structures called Chromosomes.
Genes
Chemicals found on chromosomes that pass on information from parents to children.
DNA
Deoxyribonucleic acid
46 chromosomes
When an egg and sperm cell fuse (each has 23 chromosomes) they give the individual they are creating 46 chromosomes.
Dominant gene
Stronger gene
Recessive gene
Weaker gene
B
For brown eyes
b
Blue eyes