3.2

Question 1

Nucleosome

Answer 1

Consists of molecules of 4 different histones. Dna wraps around it caus its - and histones are + charged. 5th histone appears a lot to create durther wrapping an eventually a chromosome

Question 2

Plasmids

Answer 2

Small loops of DNA that are extra copies of some of the genetic material of the organism

Question 3

Transcription and dna packaging

Answer 3

Dna wrapped around histones and further wrapped to make more elaborate strucures is innaccessible to transcription enzymes. Therefore wrapping or packaging of DNA regulates transcription process, only parts of dna involved in protein synthesis

Question 4

Multiple chromosomes

Answer 4

Each carry a different set of instructions for the cell

Question 5

Homologous

Answer 5

Similar in shape and size, it means the 2 chromosomes carry the same genes

Question 6

Diploid

Answer 6

A nucleus that has chromosomes organized into pairs of homologous chromosomes

Question 7

Haploid

Answer 7

Chromosomes do not come in pairs, only have a single chromosome from each pair

Question 8

Karyogram

Answer 8

A representation of chromosomes found in a cell arranged according to a standard format according to soze and shape.
Used to show a persons karyotype

Question 9

Karyotype

Answer 9

The specific number and appearance of the chromosomes in his or her cells

Question 10

Autosomal

Answer 10

When the locus of a trait is on one of the 22 pair of autosomes not sex chromosomes

Question 11

Autosome

Answer 11

Any chromosome that is not a sex chromosome

Question 12

Autoradiography

Answer 12

A technique in which radiation from a substance is captured on photographic film or by a camera sensor