This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Compare the twin method with the adoption method for the purpose of assessing the contribution of ... (Read 115 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
on: Jun 22, 2018
Compare the twin method with the adoption method for the purpose of assessing the contribution of genes versus environment.
 
  What will be an ideal response?

Question 2

Explain how retrograde labeling is used to trace the afferent connections for a brain region.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: The twin method identifies identical and fraternal twins and assesses the degree of similarity (concordance) between the pairs. Identical twins share 100 percent of their genes, whereas fraternal twins share 50 percent of their genes. A genetic contribution would be indicated were identical twins to show a greater concordance rate for a trait than do fraternal twins. In the adoption method, a specific trait is considered in children who were adopted early in life, with the frequency of that trait in their biological parents (genetic contribution) compared with the frequency in their adopted parents (environmental contribution).

Answer to Question 2

Answer: Fluorogold is infused into the region, taken up by axon terminal buttons, and transported toward the cell body. Under the appropriate light source, a section of brain tissue containing fluorogold will fluoresce.


sam.t96

  • Member
  • Posts: 570
Reply 2 on: Jun 22, 2018
:D TYSM

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Inhibition as a primary method of succession in the marine intertidal zone. Inhibition as a primary method of succession in the marine intertidal zone.
Contribution Contribution
Assessing for pit edema Assessing for pit edema
The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ... The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ...
How to get the derivative of x/(2-sqrt(x)) using delta method How to get the derivative of x/(2-sqrt(x)) using delta method
Linear programming problems using the simplex method. Linear programming problems using the simplex method.
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library