#1 Organisms that have two of the same alleles for a particular gene are

called ________.

a. Heterozygousb. Gametesc. Dihybridsd. Homozygous

#2 The major cause for changes in the gene pool of a population is

_____.a. Natural selectionb. Mutationc. Migrationd. Reproductive isolation

#3 Organisms that have two different alleles for a particular gene are called

________.

a. Heterozygousb. Gametesc. Dihybridsd. Homozygous

#4 What was Mendel most notably known for?

a. Father of Geneticsb. Father of Evolutionc. Father of the Jewsd. Father of Molecular Biology

# 5 Organisms are products of their __________ and of their environment.

a. Heredityb. Colorc. Mitochondriad. Dermis

#6 Green is dominant to yellow. Determine the genotype and phenotype ratios for a heterozygous female and a homozygous

dominant malea. Geno: 25%(GG), 50% (Gg), 25% (gg)– Pheno: 50% green, 50% yellow

b. Geno: 25%(GG), 50% (Gg), 25% (gg)– Pheno: 75% green, 25% yellow

c. Geno: 50%(GG), 50% (Gg), 0% (gg)– Pheno: 100% green, 0% yellow

d. Geno: 0%(GG), 50% (Gg), 75% (gg)– Pheno: 0% green, 100% yellow

#7 Why did he study pea plants?

a. Easy to growb. Self-fertilizingc. Could study many generationsd. All of the above

#8 Which of the following is not used to classify organisms?

a. Common namesb. Physical appearancec. Embryologyd. Chromosome structure

#9 This is an example of ________.a. Hemophiliab.Down syndrome (nondisjunction)c. Sickle cell anemiad.Color blindness

#10 Tall plants is dominant to short plants. Determine the genotype and phenotype

ratios for a homozygous recessive female and a homozygous recessivemale

a. Geno: 25%(TT), 50% (Tt), 25% (tt)– Pheno: 50% tall, 50% short

b. Geno: 25%(TT), 50% (Tt), 25% (tt)– Pheno: 75% tall, 25% short

c. Geno: 0%(TT), 0% (Tt), 100% (tt)– Pheno: 0% tall, 100% short

d. Geno: 0%(TT), 50% (Tt), 75% (tt)– Pheno: 0% tall, 100% short

#11 Humans have a total of ____ pairs of chromosomes.

a. 17b. 23c. 100d. 46

#12 Polymerase Chain Reaction (PCR) is a method of producing many copies of a tiny sample of

______.

a. DNAb. Chloroplastsc. Heart cellsd. Blood

#13 Normal Human Female organisms have ______.

a. One X and one Y chromosomesb. No X chromosomesc. Two Y chromosomesd. Two X chromosomes

#14 The blood type of a person with one B gene and one A gene is

___.

a. Ab. ABc. Od. B

#15 What is a pedigree?a. Dog foodb. Chart used to look at a family’s genetic traitsc. Graph used to look at DNAd. Sequencing of gene.

#16 Purple flowers is dominant to white flowers. Determine the genotype and

phenotype ratios for a heterozygous female and a heterozygous male

a. Geno: 25%(PP), 50% (Pp), 25% (pp)– Pheno: 50% purple, 50% white

b. Geno: 25%(PP), 50% (Pp), 25% (pp)– Pheno: 75% purple, 25% white

c. Geno: 50%(PP), 50% (Pp), 0% (pp)– Pheno: 100% purple, 0% white

d. Geno: 0%(PP), 50% (Pp), 75% (pp)– Pheno: 0% purple, 100% white

#17 When we have 46 chromosomes lined up by size and shape, it is called _____________.

a. Sequencingb. Karyotypec. Orderingd. Factoring

#18 Cloning produces organisms that have _____________.

a. Identical genesb. All dominant genesc. All recessive genesd. 2 complete sets of chromosomes

#19 When an organism that is homozygous dominant is crossed with an organism that is

homozygous recessive,

a. All the offspring will have the phenotype of the dominant parent

b. Some will have the phenotype of the dominant parent and some for the recessive parent

c. You can’t tell from this informationd. The offspring will have varying genotypes.

#20 Today, biologists refer to Mendel's factors as ____________.

a. Gametesb. Genesc. RNAd. Cytoplasm

#21 The field of biology that studies inheritance of traits is

_____.a. Ecologyb. Embryologyc. Heredityd. Genetics

#22 The science of classifying things is called _____.

a. Taxonomyb. Evolutionc. Embryologyd. Phylogeny

#23 The meadow rose (Rosa blanda), cherry tree (Prunus avium), apple tree (Malus

pumila), and moss rose (Rosa centifolia) all belong to the Rosaceae Family. The 2 plants that belong to the same genus are the ___.

a. Apple tree and cherry treeb. Moss rose and meadow rosec. Moss rose and apple treed. Meadow rose and cherry tree

#24 The Classification group with the most different kinds of organisms is

_____.

a. Genusb. Familyc. Kingdomd. Phylum

#25 What is the correct way of writing the scientific name for a

Lion?A. panthera leo

B. Panthera leo

C. Panthera leo

D. panthera Leo

#26 Pieces of DNA from one kind of organism that contains DNA from another

kind of organism is called ______.a. RNAb. Hybridsc. Plasmidsd. Recombinant DNA

#27 All of the following can cause changes in the gene pool of a

population except ____.

a. Migrationb. Natural selectionc. Overproductiond. Mutations

#28 Because only tall plants were produced when purebred short and tall plants were crossed, Mendel concluded

that the tall trait is ______.

a. Dominantb. Purec. Recessived. Hidden

#29 Which of the following is not a reason to classify organisms?

a. To make it easier to identify unknown organisms

b. To show relationships among organismsc. To organize information about different

types of organismsd. To provide organisms with Latin names

# 30 The most closely related organisms belong to the same

a. Kingdomb. Speciesc. Genusd. Order

#31 Dimples is dominant to no dimples. Determine the genotype and phenotype ratios for a heterozygous female and a heterozygous

malea. Geno: 25%(DD), 50% (Dd), 25% (dd)– Pheno: 50% dimples, 50% no dimples

b. Geno: 50%(DD), 50% (Dd), 0% (dd)– Pheno: 100% dimples, 0% no dimples

c. Geno: 0%(DD), 50% (Dd), 75% (dd)– Pheno: 0% dimples, 100% no dimples

d. Geno: 25%(DD), 50% (Dd), 25% (dd)– Pheno: 75% dimples, 25% no dimples

#32 The process of evolution through slow change is called

_____.a. Gradualismb. Punctuated equilibriumc. Speciationd. Variations

#33 What does a Scientific name consist of?

A. Kingdom orderB. Class speciesC. Phylum GenusD. Genus species

#34 The Kaibab squirrel and Abert squirrel live on opposite sides of the Grand Canyon.

The development of these 2 species of squirrels from a common ancestor was most

likely a result from ___.

a. Mutation then migrationb. Gradualismc. Geographic isolationd. Mutation

#35 All the blackbirds that live in a certain forest make up a _____.

a. Migrationb. Kingdomc. Phylumd. Population

#36 According to the theory of natural selection, organisms that are well adapted to their environment

___.a. Usually migrate elsewhereb. Survive to pass on their traits to their

offspringc. Add new genes to the gene poold. Form a population

#37 Brown hair is dominant to gray hair. Determine the genotype and phenotype

ratios for a homozygous dominant female and a homozygous dominant male

a. Geno: 25%(BB), 50% (Bb), 25% (bb)– Pheno: 50% brown, 50% grey

b. Geno: 25%(BB), 50% (Bb), 25% (bb)– Pheno: 75% brown, 25% grey

c. Geno: 50%(BB), 50% (Bb), 0% (bb)– Pheno: 100% brown, 0% grey

d. Geno: 100%(BB), 0% (Bb), 0% (bb)– Pheno: 100% brown, 0% grey

#38 The system of binomial nomenclature was developed

by____.a. Darwinb. Linnaeusc. Rayd. Aristotle

#39 All of the following are part of Darwin’s theory of evolution except

____.

a. Competitionb. Variationsc. Acquired characteristicsd. Survival of the fittest

#40 Geographic isolation occurs when _____.

a. Organisms in a population can no longer produce offspring

b. The structure of a gene changesc. A physical barrier separates 2 populationsd. Members of species move into a population