Genetics Day 2: Dihybrid Crosses Simple description:
The hardest part of a dihybrid cross is figuring out the
gametes. What is an easy method used to
this?
First set -
AB
Outer set -
Ab
Aa Bb
inner set -
a B
Last set -
ab
Dad
Mom
set
SsBb
SsBb
00
B
Homologous
Pais
Hornocogous
Pair
Homologous
Paw
seperous
Egg combinations
Sperm combinations
Gametes
Example 1: Short tails (S) are dominant over long tails (s); Black fur (B) is dominant over yellow fur (b)
How many would have short tails, black fur?
Short tail, yellow fur?
Long tail, black fur?
Long tall, ye low fur?

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.