Evolution
Biological Diversity
Plants
Animal Form and Function
Animal Reproduction and Development
100
Which of the following causes a random increase or decrease of alleles? a. Natural Selection b. Mutations c. Gene Flow d. Sexual Reproduction e. Genetic Drift
What is E. Genetic drift
100
Domain Archaea differs from Domain Bacteria & Eukarya by all of the following characteristics EXCEPT: a. kinds of nucleotides in their DNA b. structure of their flagella c. structure of their plasma membranes d. structure of their chromosomes e. methods of cell division
What is A. kinds of nucleotides in their DNA
100
Which of the following is dead at functional maturity? a. phloem cells b. Guard Cell c. Palisade Mesophyll d. Sieve-tube Members e. xylem cells
What is E. xylem cells
100
Body temperature can be increased by all of the following EXCEPT: a. muscle contractions b. Drinking alcohol, which results in vasodilation c. Increasing metabolic activity d. puffing up feathers or hair e. reducing blood flow to ears
What is B. Drinking alcohol
100
The human reproductive cycles are initiated by a. the hypothalamus b. the anterior pituitary c. the ovaries d. Sertoli Cells e. both the hypothalamus and the anterior pituitary
What is E. both the hypothalamus and the anterior pituitary
200
The appearance of a new mutation is a. A random event b. The result of natural selection c. The result of artificial selection d. The result of sexual reproduction e. Usually a beneficial event
What is A. A random event
200
All of the following are examples of substances found in either Domain Bacteria or Archaea EXCEPT: a. peptidoglycans b. flagellin c. plasmid d. chitin e. phycobilins
What is D. chitin
200
In Gravitropism, specialized starch containing organelles which sink to the bottom of cells in response to gravity a. apical meristem b. amyloplasts c. auxin d. abscission e. gibberellins
What is B. amyloplasts
200
This describes the unstimulated, polarized state of a neuron a. Action potential b. Resting potential c. Depolarization d. Refractory period e. Hyperpolarization
What is B. Resting potential
200
Oogenesis in humans begins a. During embryonic development b. At birth c. At puberty d. Monthly during the menstrual cycle e. At fertilization
What is A. during embryonic development
300
Which of the following is an example of convergent evolution? a. Dark-colored & white pepper moths in London at the beginning of the industrial revolution b. A dolphin and a shark c. A human and a monkey d. Darwin's finches in the Galapagos Islands e. Hybrid inviability
What is B. A dolphin and a shark
300
In plants, seed germination may require all of the following except a. water b. oxygen c. Nitrogen d. gibberellins e. Temperature
What is C. nitrogen
300
A plant with a fibrous root system, leaves with parallel venation, and a seed with a single cotyledon is probably a a. Corn Plant b. Fern c. Fir Tree d. Pine Tree e. Pea Plant
What is A. Corn Plant
300
The 1st line of defense in an immune system includes all but the following a. Antibiotics b. Symbiotic bacteria c. Cilia d. Skin e. Gastric juice
What is A. Antibiotics
300
Morphogens are proteins whose symmetrical distribution in the cytoplasm of the oocyte a. provide ATP for flagellar movements b. control DNA replication in the sperm c. determines the anterior/posterior & dorsal/ventral aces of the cell d. enclose the genetic material e. Provide energy molecules for glycolytic reactions
What is C. determines the anterior/posterior & dorsal/ventral aces of the cell
400
A population consists of 9% white sheep and 91% black sheep. What is the frequency of the black-wool allele if the black-wool allele is dominant and the white-wool allele is recessive? a. 0.09 b. 0.3 c. 0.42 d. 0.49 e. 0.7
What is E. 0.7
400
All of the following contribute to flowering mechanisms except a. photoperiodism b. chlorophyll c. length of day or day light d. phytochrome e. florigen
What is B. chlorophyll
400
All of the following are true about plant responses to biotic stimulii EXCEPT: a. Some plants recruit other organisms to help protect them b. Auxin causes the meristematic tissue to poliferate c. Plants possess an arsenal of toxic metabolites to discourage browsing d. Plants can produce hormones that affect insects that eat it e. Some Plants have thorns or sharp edges
What is b. Auxin causes the meristematic tissue to poliferate
400
Insulin and glucagon regulate blood glucose levels in the blood. Glucose rises, insulin is produced, then glucose decreases in the blood. This is an example of a. Antagonistic hormones working b. Thermoregulation c. Positive feedback d. Negative feedback e. Both Negative feedback and Antagonistic hormones
What is E. Both Negative feedback and Antagonistic hormones
400
Master genes that specify the deveolpmental patterns of groups of cells are a. Methylation b. Homeotic genes c. MicroRNA's d. Apoptosis e. Morphogens
What is B. Homeotic genes
500
After test-cross experiments, it was determined that the frequencies of homozygous dominant, heterozygous, and homozygous recessive individuals for a particular trait were 32%, 64%, and 4% respectively. The dominant and recessive allele frequencies a. are .2 and .8 respectively b. are .32 and .68 respectively c. are .36 and .64 respectively d. are .3 and .9 respectively e. cannot be determined because the population is not a Hardy-Weinburg equilibrium
What is E. cannot be determined because the population is not in Hardy-Weinberg equilibrium
500
The structure of the leaf must balance the needs for photosynthesis, the costs of transpiration & the avoidance of herbivory. All of the following are ways that a plant deals with these challenges except a. Use of the cuticle b. Use of Guard cells c. Plant hairs that interfere with wind d. They have stomata that occur in depressions e. They use animals to disperse their seeds
What is E. they use animals to disperse their seeds
500
During the middle of the night, a flowering plant was exposed to a sequence of red and far-red light in the following order: red, far-red, red. All of the following are true EXCEPT: a. The active form of phytochrome is Pfr b. High levels of Pfr would exist at the end of the sequence c. Low levels of Pr would exist at the end of the sequence d. In short-day plants, flowering would be induced e. In day-nuetral plants, flowering would not be affected
What is D. In short-day plants, flowering would be induced
500
Which of the following is the last step leading up to muscle contraction that occurs just before a myofibril contracts? a. Tropomyosin exposes binding sites on actin b. ATP binds to myosin c. Sarcoplasmic reticulum releases Ca+ d. ATP is converted to ADP + P e. cAMP is formed
What is A. Tropomyosin exposes binding sites on actin
500
What causes cells to become structurally and functionally different within the same individual after fertilization? a. Apoptosis b. Embryonic induction c. Indeterminate & determinate cleavagees d. Cytoplasmic determinants e. All of the above are involved
What is E. All of the above are involved
M
e
n
u