additional qs I got wrong Flashcards
1
Q
why did Darwin not explain how new species actually arise?
A
he lacked an understanding of genetics
2
Q
what is a genetic marker?
A
a gene used to study a biological process
3
Q
genes for heavy metal tolerance occur at very low frequencies in uncontaminated pastures. why don’t genes for heavy metal tolerance spread in uncontaminated pastures?
A
they reduce the competitive ability of heavy metal tolerant plants
4
Q
how did Darwin discover inbreeding depression?
A
by comparing the viability and fertility of plants resulting from artificial cross-fertilisation and self-fertilisation
