« previous next »

Author Question: Which of the following was a discovery that had to be made before human chromoso (Read 417 times)

curlz

  • Hero Member
  • *****
  • Posts: 538
on: Jun 17, 2013
Which of the following was a discovery that had to be made before human chromosomes could be correctly counted?
A) how to use a hypotonic solution to swell nuclei
B) how to visualize sperm nuclei
C) how to visualize chromosomes
D) when to see chromosomes separate from one another
E) when to see chromosomes in pairs


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jun 18, 2013
Go with A, I'm pretty sure it's that.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Human body cavities and membranes Human body cavities and membranes
Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania) Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
“To confess my weakness,” Hamilton wrote when he was only fourteen, “my ambition is prevalent.” This “To confess my weakness,” Hamilton wrote when he was only fourteen, “my ambition is prevalent.” This
Human Figure Human Figure
Share of Human Capital in Wages in Advanced Countries Share of Human Capital in Wages in Advanced Countries
Components of Human Blood Components of Human Blood
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library