Reference no: EM132203207
1)Which organelle converts food into usable energy for the cell?
Mitochondrion
Chloroplast
Ribosome
Nucleus
2) A normal human male has:
46 chromosomes
23 Autosomes and 1 sex chromosome (y)
a haploid set of chromosomes in each cell two X chromosomes, one from mother and one from the father
3) The formula n + n --> 2n is used in describing
fertilization of an egg by a sperm to create a diploid offspring
combination of two sets of eggs to make a haploid gamete
combination of haploid zygotes
reduce the number of chromosomes in a cell from 46 to 23
4) In humans, a man with Blood type AB could be the father of:
An A, B, or O child but not AB
An A, B, or AB child but not O
Only an AB child
Only an O child
5) If a group of chromosomes fail to separate during Meiosis, what might be the result?
An abnormal number of chromosomes in the offspring
Sickle Cell Anemia
Cystic Fibrosis
Leukemia
6) A change to a woman's X chromosome isn't as difficult for her usually as it would be to her son because?
She has two X chromosomes
The son only gets one X chromosome from her, and a Y from the father
X and Y chromosomes do not contain the same types of genes
Her "normal" X chromosome might contain dominant forms of the faulty X genes
All of the above
7) In the "coin toss kids" activity, what was the name given by evolutionary and population biologists to describe what happens to genetic diversity when alot of individuals die off?
genetic bottleneck
Host-pathogen relationship
Immunization
Gene Enhancing
Genetic Mutation
8) An enzyme's optimum temperature is:
always 37 C
always 23 C
where it works best
slightly above freezing
9) Finish the sentence: "A protein's ______ is determined by ________ ."
A.Function, Shape
B.Amino Acid Sequence, a gene
C.shape, amino acid sequence
D.All of the above
10) A typical enzyme in the human body has which optimum temperature?
42 C
23 C
37 C
95 C
11) A polypeptide is made up of:
A.Monosaccharides
B.Glycerols and Fatty Acids
C.Amino Acids
D.Only Carbon Atoms
12) A cell's main storage area:
A.Mitochondria
B.Nucleus
C.Golgi apparatus
D.Vacuole
13) In our lab, the enzyme we used was _______________ and peroxide was the _______________.
Hemoglobin, Catalase
Active Site, Substrate
Catalase, Substrate
Catalase, Hemoglobin
14) Which are examples of proteins?
A.Hemoglobin and Glucose
B.Glucose and DNA
C.Hemoglobin and Melanin
D.Glucose and DNA
15) Which cell structure best corresponds with the "Manager's Office" in a business/factory analogy?
A.Nucleus
B.Chloroplast
C.Endoplasmic Reticulum
D.Ribosome
16) Why does altering the pH of an enzyme's surroundings sometimes cause the activity of that enzyme to be changed?
strong acids can turn the protein into starch
adding "H+" or "OH - " particles can denature the protein's shape
acids and bases are neutral and will always improve the enzyme's effectivness
acids and bases tend to turn enzymes into harmless oxygen and water molecules.
17) An mRNA sequence CGA would code for which amino acid:
Proline
Arginine
Leucine
Tyrosine
18) A gene is:
a segment of DNA that codes for a protein
a set of homologous chromosomes
a molecule within DNA
a type of pants
19) A body cell with a diploid number of chromosomes is said to be:
n
2n
3n
tetraploid
20) The number of chromosomes in human gametes is:
23 Pairs
46
haploid
diploid
21) The two men who established the structure of DNA were:
Frederick and Alvers
Watson and Crick
Berkely and Fry
Darwin and Lamarke
22) Which shows the correct sequence of phases of cell division?
Anaphase, Prophase, Metaphase, Telophase
Synthesis, Cytokinesis, Anaphase, Telophase
Prophase, Anaphase, Metaphase, Telophase
Prophase, Metaphase, Anaphase, Telophase
23) An advantage of sexual reproduction (for the species or population) is ______________ in offspring.
A.cloning
B.variety
C.few numbers
D.twins
24) Genetic drift may result from
A.isolation of species
B.speciation
C.chance
D.mating between two species
25) Keeping lethal/harmful alleles in the gene pool results when the gene pair has
A.one recessive and one dominant gene
B.two recessive genes
C.two dominant genes
D.only one gene, not a pair.