Miscellaneous
Reproduction
Genetics
Photosynthesis
Mutations
100
Which of the following indicates two copies of each chromosome?
n, 2n, 3n, 4n
2n
100
Sexual reproduction results in _______.
Answer Choices: identical copies, mutations, premature aging, genetic diversity
genetic diversity
100
A - is dominant
a - is recessive
We call aa...
a) homozygous dominant b) homozygous recessive c) heterozygous
homozygous recessive
100
Where in the plant cell does photosynthesis take place? The chloroplast or mitochondrion
chloroplast
100
True or false, a mutation may be helpful or harmful depending on what is affected.
True
200
Sperm and egg cells carry....
one copy of each chromosome
two copies of each chromosome
three copies of each chromosome
one copy.
200
Reproduction that results in an exact copy.
A. Sexual reproduction B. Asexual reproduction
C. Fertilization D. Pollination
Asexual Reproduction
200
How many copies of each gene do you have?
1, 2, 3 or 4
2, one from your mom and one from your dad
200
Where does the energy for the photosynthesis reaction come from?
The sun (Sunlight)
200
A mutation is a change in an organism's _________.
DNA or Genes
300
An organism that makes its own food using energy from the sun.
Answer Choices: decomposer, heterotroph, autotroph, parasite, consumer, omnivore, herbivore
autotroph
300
Is a runner a sexual or asexual form of reproduction?
asexual
300
T = tall and t = short
Of the 4 possible outcomes, how many of the offspring will be tall and how many will be short?
3 or 75% = tall (TT or Tt)
1 or 25% = short (tt)
300
What gas is being produced?
Oxygen
300
Which of the following is a section of DNA that contains the instructions for a specific trait.
protein, mitochondrion, chloroplast, DNA, trait, allele, gene
gene
400
What process ensures that only the fittest (adapted best to their environment) individuals in a population survive to reproduce?
Natural Selection
400
What is an advantage of asexual reproduction over sexual reproduction?
quick or
doesn't require a mate
400
T is the dominant allele for tall.
t is the recessive allele for short.
If a person is short, what is their genotype?
___ ___ (two letters)
tt
400
What are the reactants of the photosynthesis reaction?
water and carbon dioxide
400
Genes contain instructions for how to _______.
Answer Choices: make a protein, make energy, make food, reproduce
make a protein
500
In the photosynthesis reaction, sugar is produced. What is another name for sugar?
Glucose
500
Bacteria are single cellular organisms that reproduce by dividing. What type of reproduction is this?
(the answer is not mitosis or binary fission)
Asexual
500
Two tall pea plants are crossed and the offspring are studied. Some of the offspring are short. Knowing that T = tall and t = short, what is the genotype of each parent?
Male = ____ ____ Female = ____ ____
Male = Tt Female = Tt
Short offspring must be tt. The only way this can happen is for the offspring to get one t (short allele) from each parent. The only way each parent can pass on a short allel and be tall is for them to be Tt.
TT = tall (but can't pass on short) Tt (Tall, and can pass on short. tt = short
500
What are the products of photosynthesis?
oxygen and sugar
500
Why do insertion and deletion mutations result in big changes?
DNA is read in groups of 3. If a letter is added or deleted, it affects everything after it.