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Biology 1
Biology 2
Biology 3
Biology 4
Biology 5
100
The cell cycle consists of all the events in a cell's life. Which of the following shows the correct sequence of the cell cycle? a) M--> G1 --> S --> G2--> C b) G1--> S --> G2 --> M--> C c) C--> G1 --> G2 --> S--> M d) M--> G1 --> G2 --> S--> C
What is b) G1--> S --> G2 --> M--> C?
100
Parents provide one form of a trait to each offspring. What structure listed below are they actually passing on that will help determine the trait? a) ATP b) cell c) Protein d) gene
What is d) gene?
100
Which statement describes a cell process that is found in eukaryotic and prokaryotic cells? a) both cells build RNA strands from DNA in the nucleus b) both cells use ribosomes to produce proteins c) both cells create amino acids to build RNA strands from DNA d) both cells use the endoplasmic reticulum to produce proteins
What is b) both cells use ribosomes to produce proteins?
100
When a small group of organisms migrates away from the original environment, there is a change in allele frequencies between the two populations. Which of the following is MOST LIKELY to occur from such frequency changes? a) extinction of the original population b) selective breeding c) natural selection d) mutation in the original population
What is c) natural selection?
100
A stable forest ecosystem would NOT contain a) more consumers than producers b) nutrients being cycled c) carbon dioxide d) scavengers
What is a) more consumers than producers?
200
An organism has a diploid number of 28. How many chromosomes will be found in its body cells and gametes? a) 28 in the body cells and 14 in the gametes b) 14 in the body cells and 14 in the gametes c) 28 in the body cells and 28 in the gametes d) 14 in the body cells and 28 in the gametes
What is a) 28 in the body cells and 14 in the gametes?
200
Snapdragon plants exhibit incomplete dominance. If RR = white flowers, R1R1 = red flowers, and RR1 = pink flowers, which phenotypic ratio would be expected in the offspring of two pink flowers? a) 3 red: 0 pink: 1 white b) 1 red: 2 pink: 1 white c) 0 red: 2 pink: 2 white d) 0 red: 4 pink: 0 white
What is b) 1 red: 2 pink: 1 white?
200
In a cell, information that regulates the process of protein synthesis must pass from the nucleus to the a) nuclear membrane b) ribosomes c) chloroplasts d) mitochondria
What is b) ribosomes?
200
A mutation occurs in the genes that code for fur color in squirrels. Which change will MOST LIKELY result from this mutation? a) a change in the natural selection pressures acting on fur color b) a change in the fur color gene of squirrel predators c) an increase in the diversity of fur color genes in the squirrel population d) a decrease in diversity of the fur color genes in the squirrel population
What is c) an increase in the diversity of fur color genes in the squirrel population?
200
In an ocean ecosystem, which of the following is not recycled a) carbon b) oxygen c) nitrogen d) energy
What is d) energy?
300
Mitosis is the process of nuclear division resulting in genetically identical daughter cells. Meiosis, unlike mitosis, results in the formation of a) 1N cells b) haploid cells c) 2N daughter cells d) diploid cells
What is a) 1N cells?
300
In pea plants, the allele for round seeds (R) is dominant while the allele for wrinkled seed (r) is recessive. A farmer crossed a heterozygous, round seed plant with a wrinkled seed plant. Which of the following is an accurate expected result of the cross? a) 75% round seeds and 25% wrinkled seeds b) 50% round seeds and 50% wrinkled seeds c) 100% round seeds d) 25% round seeds and 75% wrinkled seeds
What is b) 50% round seeds and 50% wrinkled seeds?
300
Which of the following statements is true regarding change in DNA? a) it is always disadvantageous to an individual b) it is always found in gametes c) it is always detected by the process of DNA fingerprinting d) it is always known as a mutation
What is d) it is always known as a mutation?
300
Which of the following statements best describes a controlled experiment? a) no dependent variables are needed b) it results in the dependent variable having no effect on the independent variable c) the effect of a single independent variable is tested d) no variables are tested
What is c) the effect of a single independent variable is tested?
300
Increasing human population has had one of the most negative effects on the Earth's ecosystems. However, which of the following is one way that humans could have a positive impact on their local ecosystem? a) generate increased amount of waste as a result of increased technology b) utilize renewable resources c) plant only one crop in a field year after year d) increase the use of insecticides
What is b) utilize renewable resources?
400
Prior to cell division, DNA separates into two strands. In this case, the DNA would most likely be involved in a) replication b) transcription c) fertilization d) hydrolysis
What is a) replication?
400
A cell with a diploid number of 20 undergoes meiosis. At the completion of meiosis, two of the resulting cells have 10 chromosomes, one has 9 chromosomes and one has 11 chromosomes. Which statement most likely explains this abnormal result? a) deletion b) nondisjunction c) insertion d) crossing-over
What is b) nondisjunction?
400
A change in the order of DNA bases during DNA replication may result in? a) genetic variation within an organism b) production of identical proteins c) evolution of an organism d) crossing over during meiosis
What is a) genetic variation within an organism?
400
Which of the following ecological terms indicates abiotic and biotic factors? a) species b) community c) population d) ecosystem
What is d) ecosystem?
400
Which of the following represents a limiting factor unique to a field planted with wheat each year? a) the amount of soil nutrients b) the temperature c) the amount of sunlight d) the amount of water
What is a) the amount of soil nutrients?
500
Which DNA process is represented below? A DNA molecule untwists--> the two strands of DNA separate --> complementary bases pair --> two identical DNA molecules are formed a) protein synthesis b) mutation c) translation d) replication
What is d) replication?
500
Eukaryotic and prokaryotic cells both contain DNA. Which of the following statements represents a common genetic process that eukaryotic and prokaryotic cells also share? a) both types of cells require ribosomes for the translation process b) both types of cells carry out transcription and translation in the nucleus c) both types of cells synthesize proteins during transcription d) both types of cells carry out transcription and translation in the mitochondria
What is a) both types of cells require ribosomes for the translation process?
500
The technique of cloning produces organisms that are a) genetically identical to the original b) considered dangerous c) identical in behavior d) genetically similar to the original
What is a) genetically identical to the original?
500
A scientist discovers that very few plants grow on the bottom of the ocean. Which statement below best explains this observation? a) an increased amount of oxygen availability b) an increased amount of sunlight c) a decreased amount of sunlight d) a decreased amount of competition
What is c) a decreased amount of sunlight?
500
Use the chart below to answer the following question. DIETARY PREFERENCES OF DARWIN'S FINCHES SPECIES OF FINCH PREFERRED FOODS a) insects and seeds b) nuts and seeds c) nuts and seeds d) fruits and seeds e worms and insects Which two species would be able to live in the same habitat without competing for food? a) A and E b) A and B c) B and C d) D and E
What is a) A and E