Genetics

?
Deoxyribonucleic acid - The molecules which contain genes
DNA
1 of 18
Are X shaped things found in nucleus. Humans have 23 pairs, and they contain DNA, and also genes
Chromosomes
2 of 18
A section of a DNA molecule, or part of a chromosome
Gene
3 of 18
One a gene. When you have two different versions of the same gene, each version is called an
Allele
4 of 18
An allele that will determine the phenotypic characteristics if there is only one of them
Dominant
5 of 18
An allele that will only show the phenotypic characteristics if there are two of the same allele, e.g. if it is homozygous ...
Recessive
6 of 18
having identical pairs of genes for any given pair of hereditary characteristics.
Homozygous
7 of 18
having dissimilar pairs of genes for any hereditary characteristic.
Heterozygous
8 of 18
the genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits.
Genotype
9 of 18
the characteristics of an organism or group of organisms
Phenotype
10 of 18
The type of cell division where one cell splits up into two new identical cells
Mitosis
11 of 18
The type of cell division where two gamete cells combine to form four genetically different cells
Meiosis
12 of 18
a cell which contains all 46 chromosomes (e.g. all 23 pairs)
Diploid
13 of 18
a cell which contains just half the normal number of chromosomes, 23. Found in gamete cells.
Haploid
14 of 18
Either a sperm or egg cell. All are haploid
Gamete
15 of 18
After the gametes have fused together they form a
Zygote
16 of 18
A pair of chromosomes which go together (i.e. there are 23 pairs).
Homologous
17 of 18
A pair of chromosomes determining the sex of the human (and most of mammals and some insects), a female has ** chromosomes and a male has XY chromosomes
Sex-determining chromosomes
18 of 18

Other cards in this set

Card 2

Front

Are X shaped things found in nucleus. Humans have 23 pairs, and they contain DNA, and also genes

Back

Chromosomes

Card 3

Front

A section of a DNA molecule, or part of a chromosome

Back

Preview of the front of card 3

Card 4

Front

One a gene. When you have two different versions of the same gene, each version is called an

Back

Preview of the front of card 4

Card 5

Front

An allele that will determine the phenotypic characteristics if there is only one of them

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all DNA and inheritance resources »