Head into the
lab for an in-depth investigation of genetics, the
branch of biology focused on heredity and variation in
organisms, and DNA, the acid that holds the blueprints
for life. See genetic material with your own eyes as you
isolate the DNA from a tomato in a test tube.
Investigate inheritance and learn how traits are passed
down from parents to children. Learn about dominant and
recessive genes and play inheritance games to determine
how traits will be expressed.
Learn about the biology of reproduction, the components of cells, and
how chromosomes are combined and copied. Assemble a
model to see the elegant double-stranded helical
structure of DNA. Then crack the genetic code and find
out how the different parts, called nucleotides, fit
together to compose it. Read about how scientists use
DNA sequencing to reveal the order of nucleotides in
DNA.
Analyze DNA evidence to identify suspects and solve a
crime. Learn about the influential scientists, including
Mendel, Watson, and Crick, who made breakthrough
contributions to this field.
Breed your own bacteria colony to experiment with
genetic engineering. Read about how mutation affects
genes and how scientists clone plants and animals. The
full-color, 48-page manual guides your experiments.
Ages 10 and up.
• isolate the DNA from a tomato
• learn about inheritance and how traits are expressed
• build a DNA model
• breed bacteria to experiment with genetic engineering
Embark on a guided
journey through the microscopic world, revealing its hidden
creatures and unseen structures with the new TK2 Scope. First,
learn how to use the microscope and all of its parts. Next,
become familiar with your scope by examining some prepared
slides. Now, you are ready to take off on a guided investigation
of plant and animal specimens that you gather and prepare
yourself. This kit gives you the tools, knowledge, and skills
you need to view virtually any specimen you can find.
The microscope is a dual light 40-, 100-, and 400-power
metal and plastic microscope. The two battery-powered LED light
sources allow for both the viewing of large or opaque objects
lit from above and the viewing of thinly sliced or translucent
specimens lit from below. It has a 10-power ocular lens; 4-,
10-, and 40-power objective lenses; and an aperture wheel. The
lenses are all professional-quality optical glass. The
microscope is durable and powerful, permitting years of
continued observations.
The full-color, 48-page manual guides you through
set-up, usage, and dozens of fascinating observations of
biological specimens.
Ages 8 and up.
• learn how to use the microscope and how to
prepare slides
• 2 bright LED lights, above and below
• 40x, 100x, and 400x magnification
• 4x, 10x, and 40x objective lenses and a 10x ocular lens, all
made of optical grade glass
• over 20 tools and accessories
TK636815
TK2 Scope: Microscope (On Back
Order Until Late October 2011)
