Inheritance Flashcards
1
Q
DNA
A
Chemical that contains any information needed to make an organism
2
Q
Chromosome
A
- Long strands of dna
- Contain many genes
3
Q
Gene
A
- section of dna that holds characteristics
- I.e one gene contains eye colour information
4
Q
Characteristics are made from/ depend on
A
- nature = inherited from parents
- Nurture = developed form the environment they grow up in
5
Q
Inherited characteristics
A
- Determined by genes
- I.e ear lobe shape
6
Q
Acquired characteristics
A
- Depend on the environment
- I.e scars, tattoos
7
Q
Phenotype
A
- Observable characteristics of an organism
- phenotype = genotype + environmental factors
8
Q
Genotype
A
Full set of genes of an organism
9
Q
Process of inheriting characteristics
A
- humans have 46 chromosome arranged in 23 pairs
- One copy of each pair belong to your mothers and the other form your father
- egg and sperm cells join and their chromosomes pair up
10
Q
Size order of dna, chromosomes, nucleus, cell, genes
Largest to smallest
A
- cell
- nucleus
- chromosome
- dna
- genes
