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 705 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?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Bacterial cell division. Bacterial cell division.
meiotic cell division meiotic cell division
Stem cell. Stem cell.
The traditional human karyotypes derived from a normal female and a normal male The traditional human karyotypes derived from a normal female and a normal male
Pulse–chase labeling evidence of bidirectional DNA replication in mammalian chromosomes Pulse–chase labeling evidence of bidirectional DNA replication in mammalian chromosomes
Normal karyotype of a human male Normal karyotype of a human male
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library