Early atmosphere contained large amounts of which gas?
What is carbon dioxide?
100
The ultimate source of genetic diversity
What is mutation
100
A species population is reproductively isolated by a physical barrier, this is an example of?
What is allopatric species?
200
An example of an aneuploidy is
What is down syndrome, klinefelter syndrome, turner syndrome, triple X, extra Y?
200
Stem cells are found in __________
What is blastocyst?
200
It wasn't possible for eukaryotes to survive in early earth because it lacked __________
What is oxygen?
200
3 types of genetic drift are
What is fixation, founder effect, population bottleneck
200
_____________ show short periods of rapid change and _____________ shows slow change over time.
What is punctuated equilibrium, gradualism?
300
What is a disadvantage of asexual reproduction?
What is no genetic diversity?
300
Golden rice could help treat _______ in the future
What is blindness/vitamin A deficiency?
300
Which experiment supported the idea that complex organic molecules can come from inorganic means?
What is Urey Miller experiment?
300
Sexual ___________ shows equal investment of mates (partners look alike) and sexual ____________ shows competition for mates (partners look different)
What is monomorphism, dimorphism
300
_____________ is affected by the amount of resources and space available in an environment.
What is carrying capacity
400
Spermatogenesis results in ___ __________ and oogenesis results in ___ _________ and ___ __________.
What is 4 sperm, 1 egg/3 polar bodies
400
Bt is a gene found in ___________ that was inserted in corn genome to help reduce _____________ of crops.
What is bacteria; pest consumption
400
The RNA world hypothesis states that RNA is the precursor to life on Earth. This is because RNA is very __________ and mutates faster so genetic changes occur more rapidly which leads to the ________ of organisms.
What is error-prone, evolution?
400
In a Hardy weinberg population, a _________ population is favored.
What is large
400
What 3 things cause adaptive radiation?
What is mass extinction, colonization, innovation?
500
Which organism does not have telomeres?
What is bacteria? (Have circular DNA, no end)
500
New cells can be grown with _________ ________ techniques and used to repair damaged brains (example mice, girl diagnosed with cerebral palsy)
What is reproductive cloning?
500
Why do membranes make metabolism possible? (2 reasons)
What is controls reactions within a cell & creates concentration gradient?
500
What 3 things do you need for natural selection to happen?
What is variation of a trait, trait needs to be heritable, and differential reproductive success?
500
Imagine a population of monkeys in South America whose habitat had been greatly reduced to the point where only 20 monkeys survive out of an original population 100 years ago of >3500. This is an example of: