genetics (3)

Question 1

prokaryote vs eukaryote

Answer 1

pro
- circular DNA molecule
- naked
- plasmid
- 1 chromosome
Eu
- linear DNA molecule
- histone proteins
- no plasmid
- 2+ chromosomes

Question 2

autoradiography

Answer 2

find where radioactively labelled substances are located in cells (John Cairns)

Question 3

genomes

Answer 3

genome is all the genetic info of an organism

Question 4

homologous chromosomes

Answer 4

?

Question 5

haploid vs diploid

Answer 5

haploid
- only 1 chromosome
- 2 haploids create 1 diploid
diploid
- plant/animal cells
- pairs of haploids

Question 6

karyotype vs karyogram

Answer 6

type
- the number and type of chromosomes in an organism
gram
- a diagram where the chromosomes are shown in pairs

Question 7

what are the usages of a karyogram

Answer 7

• deducing the sex
  (xy male xx female)
• diagnosis of abnormalities
  (down syndrome= 3 copies of chromosome 21)