What we eat (our environment) and genetic variables come together in epigenetics.
Describe epigenetics.
A branch of genetics called epigenetics investigates how variations in the environment might affect how genes are expressed.
DNA methylation, histone alterations, and non-coding RNA pathways are examples of epigenetic mechanisms.
In conclusion, epigenetics is the fusion of genetics and environment.
1)
A)The genetic diversity generated by meiosis would be limited to recombination.
C)Each gamete would have a random combination of maternal and paternal chromosomes.
2)
A) It yields gametes with random combinations of maternal and paternal chromosomes.
C) It generates gametes with selective advantages over the gametes of competitors
Answer:
oxygen
with release of carbon dioxide
Answer:
b. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it
Explanation:
Both positive and negative feedback have the same components:
1. Stimuli - external or internal
2. Sensors - detect the stimuli
3. Control center - processes the information (CNS)
4. Effectors - activated by control center
Negative feedback loops act to oppose the stimulus.
Unlike negative feedback loops, positive feedback loops amplify the starting signal.
