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 114 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 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.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons
H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
Shirin Neshat, Rebellious Silence, from the series Women of Allah. Shirin Neshat, Rebellious Silence, from the series Women of Allah.
Sample Exercise Program for Limited Older Adults Sample Exercise Program for Limited Older Adults
A pedigree for albinism collected in the early years of the twentieth century by Charles Davenport, A pedigree for albinism collected in the early years of the twentieth century by Charles Davenport,
What amount was invested 35 years ago at 7% compounded semiannually if the value of the ... What amount was invested 35 years ago at 7% compounded semiannually if the value of the ...
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library