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 350 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?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

A possible scenario for human evolution A possible scenario for human evolution
Thorax Posterior view of human body Thorax Posterior view of human body
T-Cell Maturation T-Cell Maturation
Prometaphase Chromosomes are clearly double structures Prometaphase Chromosomes are clearly double structures
Human chromosomes as seen at metaphase of mitosis in the scanning electron microscope. The replicate Human chromosomes as seen at metaphase of mitosis in the scanning electron microscope. The replicate
A partial genetic map of the four chromosomes of Drosophila melanogaster A partial genetic map of the four chromosomes of Drosophila melanogaster
Video: Introduction to Autism

For a complete list of videos, visit our video library