Download WARM UP #17 A common error in meiosis in an egg

Warm up #1
1. Match the term on the left to the corresponding term on the
right.
a. Manipulated variable
Dependent variable
b. Responding variable
Independent variable
Fill in the blank
2. The cell is the basic unit of _______________.
3. The atom is the basic unit of _________________.
Warm up #2
1. Unlike animal cells, plant cells can use the sun’s energy to
make food using this organelle:
2. In eukaryotes, DNA is stored in this organelle:
Warm up #3
Organic compounds
contain
examples
Warm up #4
1. What are three examples of lipids?
2. How are lipids like carbohydrates?
Warm up #5
1. Proteins are made up of many of these smaller molecules:
2. Two examples of nucleic acids:
3. Enzymes speed up/slow down (pick one) chemical reactions.
Warm up #6
1. Recall what it means for matter (stuff) to be permeable or
impermeable (hint: they’re opposites and it usually involves
water).
2. What does it mean for a substance to be selectively
permeable?
Warm up #7
1. In diffusion, molecules from an area of ______concentration
to an area of _______ concentration.
2. Two ways of moving things in and out of cell that do NOT
need energy are ____________ and ______________.
Warm up #8
Determine the process occurring in each example:
1. Water moves out of the cells of a saltwater fish and into the
ocean.
2. Oxygen moves from the lungs into the bloodstream.
3. Sodium is pumped out of a nerve cell.
Warm up #9
1. Fill in the table
Living Thing
Autotroph/heterotroph?
Obtains energy directly or
indirectly from the sun?
Grass
Zebra
Lion
2. Green pigment that absorbs sunlight:
3. Organelle where green pigment is found:
Warm up #10
1. True or False: Animals also use photosynthesis.
2. True or False: Plants also use respiration.
3. What organelle is associated with respiration?
4. Do plant cells have this organelle?
Warm up #11
What do the banana, fruit fly, and human have in common?
Warm up #12
1. Determine the complimentary bases for
a strand of DNA with the bases ATTCGCTTA.
2. Do the same for: TAGCAGGCC
Warm up #13
1.
Shape of DNA:
2. DNA coils up nicely into these structures:
3. Unwound stringy DNA in the nucleus:
Warm up #14
1. What is the difference between genes and
DNA?
2. Place the following phases of mitosis in
order: anaphase, metaphase, prophase,
telophase.
Warm up #15 Just write the term.
1. Final stage of the cell cycle, in which the
cytoplasm divides.
2. A disease in which some body cells divide.
3. A doubled rod of condensed chromatin
4. Set of information that controls a trait.
Warm up #16
1. Interphase used to be considered the
“resting” stage of the cell cycle. Why is
this not correct?
2. Downside of being a clone??
WARM UP #17
A common error in meiosis in an egg (or a sperm) can result in
trisomy, in which each somatic (normal) cell of the baby has 3
copies of one particular chromosome. Trisomy 21 is when an
individual has 3 copies of Chromosome 21 in every one of their
cells. Trisomy 21 is also called Down Syndrome. What do you
think happens in meiosis that would result in 3 copies of
Chromosome 21 in an embryo?
Warm up #18
This term for a section of DNA is also
the basic unit of heredity (heredity:
the passing of traits from parents to
offspring)
Warm up #19
1. True or False: We inherit one gene for each trait.
2. What is the term for the variations in genes that allow
there to be different traits?
Warm up #20
1. Are all of your characteristics determined by your
DNA/genes? Support your answer.