Human genotype and karyotype Flashcards
1
Q
What two basic mechanisms increase genome complexity and size?
A
Duplication of existing sequences and incorporation of DNA from another species. (adding own stuff and adding other species’ stuff)
2
Q
Genomic DNA includes…
A
protein coding, regulatory, long noncoding rna transcribing, short non-coding RNA transcribing, unknown
3
Q
Why do we think RNA may have preceded DNA in evolution?
A
RNA more complex, diverse in function (rybozymes can catalyze)
4
Q
Are genome variations common amongst humans?
A
Yes.
5
Q
Name three types of repetitive sequences in the human genome
A
tandem repeats, short repeats, retrotransposons
6
Q
mating within isolated (geographically) small selection
A
inbreeding
