« previous next »

Author Question: Animal research shows that a variety of environmental influences prompt monozygotic twinning, ... (Read 157 times)

Tirant22

  • Hero Member
  • *****
  • Posts: 532
on: Jun 22, 2018
Animal research shows that a variety of environmental influences prompt monozygotic twinning, including __________.
 
  A) early fertilization of the ovum
  B) young maternal age
  C) variation in oxygen levels
  D) poor diet

Question 2

A zygote that separates into two clusters of cells instead of just one produces __________.
 
  A) identical twins
  B) dizygotic twins
  C) triplets
  D) triple X syndrome


Cheesycrackers

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Variety in Spiral Arms Variety in Spiral Arms
Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on
This Native American depiction of the Sand Creek Massacre, painted on a buffalo hide, shows the Indi This Native American depiction of the Sand Creek Massacre, painted on a buffalo hide, shows the Indi
Drawing shows what is occurring electrically at each part of the scope pattern. Drawing shows what is occurring electrically at each part of the scope pattern.
A Healthy Daily Food Plan A variety of foods from each group creates a well-balanced diet A Healthy Daily Food Plan A variety of foods from each group creates a well-balanced diet
A bell-shaped, or “normal,” curve shows the distribution of phenotypes for traits controlled by ... A bell-shaped, or “normal,” curve shows the distribution of phenotypes for traits controlled by ...
Video: Alternative Energy Sources

For a complete list of videos, visit our video library