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

Author Question: The true moment of fertilization occurs when what happens? 1. Cortical reaction occurs 2. Nuclei ... (Read 42 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
on: Jun 27, 2018
The true moment of fertilization occurs when what happens?
 
  1. Cortical reaction occurs
  2. Nuclei unite
  3. Spermatozoa propel themselves up the female tract
  4. Sperm surrounding the ovum release their enzymes

Question 2

When is breastfeeding contraindicated?
 
  1. Infant has hypertension
  2. Mother has a history of treated tuberculosis
  3. Mother is HIV positive or has AIDS
  4. Mother has a history of treated herpes


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AngeliqueG

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jun 27, 2018
Answer to Question 1

2
Explanation: 2. The true moment of fertilization occurs as the nuclei unite. Their individual nuclear membranes disappear, and their chromosomes pair up to produce the diploid zygote.

Answer to Question 2

3
Explanation: 3. Breastfeeding is contraindicated when the mother is HIV positive or has AIDS and is counseled against breastfeeding.


Evvie72

  • Member
  • Posts: 519
Reply 2 on: Jun 27, 2018
Great answer, keep it coming :)

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction
The reaction catalyzed by DNA ligase The reaction catalyzed by DNA ligase
Human embryo shortly after fertilization in the laboratory Human embryo shortly after fertilization in the laboratory
How the cortical reaction in a mouse egg is thought to prevent additional sperm from entering the eg How the cortical reaction in a mouse egg is thought to prevent additional sperm from entering the eg
Plant Fertilization Plant Fertilization
Mitosis One diploid nucleus to two diploid nuclei Mitosis One diploid nucleus to two diploid nuclei
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

For a complete list of videos, visit our video library