genomes

Question 1

what is a genome?

Answer 1

an individuals entire DNA sequence on chromosome.

Question 2

how come there are differentiated cells when DNA is same in each?

Answer 2

becuase different cells express different sets of genes from genome. - different transcripteomes and proteomes

Question 3

what are housekeeing genes?

Answer 3

genes expressed in all cells of organism

Question 4

what is autosomal chromosome?

Answer 4

appear in pairs - any chromosome that is not a sex chromosome

Question 5

what is centromere?

Answer 5

part of chromosome that links chromatids. the kinetochore assembles on centrosome which allows attachment of spindle fibres during mitosis

Question 6

whatis replication origin?

Answer 6

DNA sequence where replication is initiated

Question 7

what is telomere?

Answer 7

repetitive DNA sequence at end of linear chromosome which prevents/protects from deterioration or fusing.

Question 8

what enzyme maintains telomere?

Answer 8

telomerase

Question 9

how war circular bacterial chromosome replicated?

Answer 9

in bidirectional fashion

Question 10

name trends between gene number and organism size

Answer 10

gene numbers increase as organism complexity increases therefor genome size also increases. gene density decreases as organsims become more complex.