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

Author Question: Trisomy 21 a. occurs only in infants born to women who got pregnant at 45 years or older. b. is ... (Read 54 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
on: Jul 10, 2018
Trisomy 21
 
  a. occurs only in infants born to women who got pregnant at 45 years or older.
  b. is caused by nondisjunction.
  c. is caused by having three X chromosomes.
  d. is usually lethal.
  e. occurs only among nonhuman primates.

Question 2

Which is NOT true about recombination?
 
  a. It is the exchange of genetic material between paired chromosomes.
  b. It is also called crossing over.
  c. It occurs during mitosis.
  d. Its pairing ensures each new daughter cell receives only one of each pair.
  e. It occurs in gamete formation.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 10, 2018
Answer to Question 1

b

Answer to Question 2

c


piesebel

  • Hero Member
  • *****
  • Posts: 565
Reply #2 on: Jul 10, 2018
TY


rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Reply #3 on: Jul 10, 2018
Happy to Help


« previous next »
 

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Compression Occurs in vertebrae subjected to extreme stresses, as when one falls and lands on his or Compression Occurs in vertebrae subjected to extreme stresses, as when one falls and lands on his or
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Teaching women about the safety of drug use during pregnancy is an essential component of nursing ... Teaching women about the safety of drug use during pregnancy is an essential component of nursing ...
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ... How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ...
Beak size in finches during dry years increases because of strong selection Beak size in finches during dry years increases because of strong selection
Video: Inflammation and Fever

For a complete list of videos, visit our video library