Bio 101 Exam 3 WWU
Study online at https://quizlet.com/_b6fif6
1. Importance of protein in our diet: amino acids are essential for cell reproduction
2. What is transcription (protein synthesis: stage one): (occurs in the nucleus)
DNA is copied into RNA
3. What is translation (protein synthesis: stage two): (occurs in the ribosome)
mRNA tunnels through the ribosome, tRNA brings in amino acids and they bond
together to form a polypeptide chain that go to the E.R. to be folded into protein,
then flagged and shipped from the Golgi Apparatus
4. how is lactose digested: - lactose goes through protein synthesis
- the lactose then splits the disaccharide (lactose) so that it can be digested
(occurs in the sale intestine)
5. lactose tolerance past infant hood is_____: autosomal dominant
(you only need one gene from a parent to inherit)
6. negative symptoms of lactose intolerance and what causes them: bacteria
consumes the lactose and produces methane gas and lactic acid which causes
cramps, bloating, and gas. Lactose molecules draw water from hypertonic cells
which can cause diarrhea.
7. how can mutations be helpful/harmful: positive: new mutation allows for Ger-
man birds to grow longer beaks to eat from British bird feeders
negative: sickle cell disease
8. What causes mutation?: mutagens like cigarettes, and DNA copying errors
(pointmutation, insertion/deletion)
9. how does mutation affect sexual/asexual organisms and their diversity: -
asexual (like bacteria) rely on mutation for survival
- 95% of human genome is non-coding. mutations are usually neutral but can be
either helpful or harmful
10. what is gene flow: migration that can cause micro(within species)/macro(new
species)evolution
11. gene flow impact on diversity: increases diversity as different populations
intermingle
12. genetic drift: random changes in allele frequency
13. three examples of genetic drift: founder effect
meiosis
bottleneck effect
14. what is the founders effect: (genetic drift)
when a population moves to a new area where there is no receiving population and
they must inbreed - no diversity
15. what is meiosis: random assortment of alleles being inherited
1/3
Study online at https://quizlet.com/_b6fif6
1. Importance of protein in our diet: amino acids are essential for cell reproduction
2. What is transcription (protein synthesis: stage one): (occurs in the nucleus)
DNA is copied into RNA
3. What is translation (protein synthesis: stage two): (occurs in the ribosome)
mRNA tunnels through the ribosome, tRNA brings in amino acids and they bond
together to form a polypeptide chain that go to the E.R. to be folded into protein,
then flagged and shipped from the Golgi Apparatus
4. how is lactose digested: - lactose goes through protein synthesis
- the lactose then splits the disaccharide (lactose) so that it can be digested
(occurs in the sale intestine)
5. lactose tolerance past infant hood is_____: autosomal dominant
(you only need one gene from a parent to inherit)
6. negative symptoms of lactose intolerance and what causes them: bacteria
consumes the lactose and produces methane gas and lactic acid which causes
cramps, bloating, and gas. Lactose molecules draw water from hypertonic cells
which can cause diarrhea.
7. how can mutations be helpful/harmful: positive: new mutation allows for Ger-
man birds to grow longer beaks to eat from British bird feeders
negative: sickle cell disease
8. What causes mutation?: mutagens like cigarettes, and DNA copying errors
(pointmutation, insertion/deletion)
9. how does mutation affect sexual/asexual organisms and their diversity: -
asexual (like bacteria) rely on mutation for survival
- 95% of human genome is non-coding. mutations are usually neutral but can be
either helpful or harmful
10. what is gene flow: migration that can cause micro(within species)/macro(new
species)evolution
11. gene flow impact on diversity: increases diversity as different populations
intermingle
12. genetic drift: random changes in allele frequency
13. three examples of genetic drift: founder effect
meiosis
bottleneck effect
14. what is the founders effect: (genetic drift)
when a population moves to a new area where there is no receiving population and
they must inbreed - no diversity
15. what is meiosis: random assortment of alleles being inherited
1/3
