Gene Mutation
Who is Dolly?
the name of the first mammal ever cloned
How many pairs of legs do insects have?
3 pairs,
An octopus uses _________ and not ________ to move quickly through the water.
a siphon, not tentacles
True or False:
The papilla is part of the feather.
False
The process that takes place when bacteria duplicates itself is...
mitosis
Mutations that result in death...
lethal mutations
What gender are worker bees?
female
What is a shark's skeleton made of?
Cartilage
What is a crop?
The organ where a bird stores food
What is replication?
The process of forming 2 DNA molecules from one.
Define mutation
Any change in an organism's genetic material
List the three body sections of an insect.
head, abdomen, thorax
List at least 2 characteristics of snakes (that are on your study guide)
Snakes are meat eaters. Their jaws are doubly hinged. They molt their skin regularly.
What is down?
the short, fluffy feathers that keep a bird warm
Name at least 3 purposes for mitosis
reproduction of cells, growth, fighting disease, replacing skin cells
What is albinism?
a condition that affects the pigment of producing cells in the skin causing it to lighten
By what process do grasshoppers develop?
incomplete metamorphosis
Give two ways that amphibians and reptiles are different and two ways that they are similar.
Similarities:
three chambered heart, ectothermic
Differences:
amphibians- moist skin, go through changes,
reptiles- dry skin, molt
What is a placenta and an umbilical cord?
The placenta is the organ that supplies oxygen to some developing mammals
An umbilical cord is a structure that attaches the embryo to the placenta.
What is interphase?
Before a cell divides, it makes a copy of its genes during this process/phase.
Those with down syndrome have _______ instead of _______chromosomes on the ______ set.
3 instead of 2 on the 21st set
Why does a grasshopper not have capillaries?
it has an open circulatory system
Describe the metamorphosis of a frog and what happens in each stage.
1. It is a tadpole with no arms or legs, just a tail
2. The tadpole grows arms and legs
3. The frogles tail resorbs
4. It is a frog
What classification of animal produces milk, and where is it produced?
Mammal, mammary glands
Interphase, Prophase, Metaphase, Anaphase, Telophase