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

Author Question: A human somatic cell contains __________ chromosomes. A. 23 B. 49 C. 46 D. ... (Read 359 times)

lunatika

  • Hero Member
  • *****
  • Posts: 548
on: Aug 11, 2018
A human somatic cell contains __________ chromosomes.
 
  A. 23 B. 49 C. 46
   D. 92

Question 2

Which of the following statements about mutations is correct?
 
  A. Mutations occur when needed to allow individuals to survive environmental changes such as shifts in the climate or the onslaught of a new disease.
  B. Mutations are always beneficial, making the organism better adapted.
  C. Mutations are very important from an evolutionary perspective because they introduce variation (new alleles) into the gene pool.
  D. Mutations are goal-directed, nonrandom changes in the DNA of an organism.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

isabelt_18

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Aug 11, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C


lunatika

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Aug 11, 2018
Both answers were spot on, thank you once again


isabelt_18

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Aug 11, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Structure of a typical prokaryotic cell Structure of a typical prokaryotic cell
Cell division in common life cycles Cell division in common life cycles
(A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph (A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph
Human Cell Human Cell
The human integration pyramid care model The human integration pyramid care model
Some scientists believed that langur infanticide was influenced by human disturbance. Some scientists believed that langur infanticide was influenced by human disturbance.
Video: Brain Lobes Animation

For a complete list of videos, visit our video library