Page 71 - Career Readiness Catalog

BIOLOGY & LIFE SCIENCES

DNA STAINING
Kit #170
This highly engaging kit is based on the Feulgen reaction
where DNA in plant cells are stained purple for easy viewing .
Students macerate, stain, and mount specially grown root tips
(provided in the kit) . Then, they locate and diagram DNA in
the cells . Finally, the students are asked to observe and draw
the various stages of cell division . This enables the students
to develop a better understanding of the hereditary material
in plant chromosomes . All aspects of the lab activity are
performed by the individual student .
Requires microscopes .
Accommodates two classes, each with 15 groups of two students.
Kit No. 170 $124.10
Refill Kit No. 170-RC $99.25 REFILLABLE

SIMULATING THRESHOLD EFFECTS
OF SOIL pH ON HYDRANGEA

Kit #320
Students model how hydrangea plants are affected by soil
pH . The use of a simulation allows students to determine the
effect of agricultural lime on hydrangea flower color. Students
use the data obtained from the simulation to determine the
positive and negative threshold doses for “agricultural lime .”
They also reflect upon the results to decide whether they
have sufficient data to recommend an optimal level of lime
treatment to produce healthy plants with large, pink flowers.
Accommodates three classes, each with 6 groups of four students.
Kit No. 320 $122.50
Add a Group No. 320EL $26.35
AG LITERACY
REFILLABLE ADD A GROUP

NUCLEIC ACID MOLECULAR
STRUCTURE
Kit #513
In this engaging kit, students model nucleic acids, the largest
molecules found in living organisms . It is an excellent compliment
to The Molecular Model of DNA and its Replication (Kit #71) . In this
activity, the basic components of RNA and DNA are constructed .
Students build the nucleotide which is composed of three parts: a
five-carbon sugar, a phosphoric acid derivative called phosphate,
and a substance known as a nitrogen base . The parts are then linked
together to form a DNA model . Twelve complete sets of molecular
model components are provided .
Accommodates unlimited classes, each with 12 groups of two students.
Kit No.513 $133.85
Add a Group No. 513EL $12.90 ADD A GROUP LITERACY
NONCONSUMABLE

For discounted pricing visit the “Your State” page on lab-aids.com to contact your Curriculum Sales Specialist. 69