Blueprint Of Life

Front 1

Biochemistry

Back 1

all organisms consist of organic compound, share a genetic code of DNA or RNA and rely on Enzymes

Front 2

Biogeography

Back 2

The study of the distribution of living things

Front 3

Comparative Embryology

Back 3

the embryo's of different vertebrates are very similar suggesting they all evolved from a common ancestor

Front 4

Comparative anatomy

Back 4

study of differences and similarities in structure between different organisms

Front 5

DNA Hybridisation

Back 5

process by which DNA of different species can be compared

Front 6

Process of DNA Hybridisation

Back 6

Process: seperates two strands of the double helix from different species, single strands then mixed and cooled, hydrogen bonds reform

Front 7

Heredity

Back 7

Transfer of characteristics from one generation to the next

Front 8

Gregor Mendel

Back 8

Crossed two pure breeding pea plants and then crossed their offspring to determine the ideology of heredity

Front 9

Law of segregation (discovered by Gregor Mendel)

Back 9

an organisms characteristics are determined by genes

Front 10

Gamete

Back 10

Sex cell with only one gene present

Front 11

Homozygous

Back 11

same allele for a characteristic Example: TT

Front 12

Heterozygous

Back 12

these genotypes have different alleles for a characteristic Example: Tt

Front 13

Chromosome

Back 13

Long strand of DNA located in the Nucleus, always come in pairs one from the mother and one from the father

Front 14

Gene

Back 14

Selection of DNA on a chromosome which codes for a particular characteristic

Front 15

Alleles

Back 15

corresponding (matching) pairs of genes at the same position Example: GA

Front 16

Inheritance

Back 16

if two non affected parents have an affected child then the trait is recessive
If they have a non affected child then its dominant

Front 17

Mendel's work was not recognized because?

Back 17

he only presented his paper to a small group of scientists
- no reputation as a scientist
- his theories were radical

Front 18

Phenotype

Back 18

the appearance of an organism resulting from the genotype

Front 19

Who proposed the chromosomal theory of inheritance?

Back 19

Walter Sutton

Front 20

who showed that chromosomes were transferred from one generation to the next through cell divison?

Back 20

Theodore Boveri

Front 21

What is DNA

Back 21

Deoxyribose nucleic acid, a double stranded helix made up of nucleotides

Front 22

what are Nucleotides made up of?

Back 22

a phosphate sugar and a nitrogenous base pair Example: Adenine and Thymine or Cytosine and guanine

Front 23

Crossing over

Back 23

crossing over of genetic materials during meiosis results in the exchange of genes between chromosomes

Front 24

Co - dominance

Back 24

no allele is dominant over the other causing both alleles to be expressed Example: Road coloured cattle that have both red and white alleles. This means the cow produced both red and white hairs giving it a roan colour

Front 25

Gene + Environment =

Back 25

Phenotype