What blood type is the universal donor?

a. A

b. B

c. O

    d. ABO

When an organism has different alleles for a gene, it is

a. Recessive

b. Dominant

c. Homozygous

d. Heterozygous

Sources of genetic variability

a. Mutation

b. Gene flow

c. Natural selection

d. None of the above

e. All of the above

When Mendel cross the F¹ plants, the F² generation expressed the _____ phenotype

a. Recessive

b. Dominant

c. A & B

Sister chromatids are

a. Homologous

b. Identical

c. A & B

d. Centromeres

Much of the variation in sexual reproduction is a result of

a. Crossing-over

b. Inbreeding

c. Independent assortment

d. A & C

e. A, B, & C

Animals store excess sugar in the form of a polysaccaride called

a. Gluclose

b. Starch

c. Glycogen

d. Protein

The nuclear envelope is composed of _____?

a. Proteins

b. Carbohydrates

c. Double membrane

d. Single membrane

How many nucleotides make up a codon?

a. 4

b. 5

c. 1o

d. 3

e. 2

Allows a population to adapt to environmental changes

a. Genetic drift

b. Gene flow

c. Gene pool

d. Genetic variability

lipids are...

a. Polypeptides

b. Polysaccharides

c. Hydrophilic

d. Hydrophobic

Plants store excess sugar in the form of a polysaccharide called?

a. Gluclose

b. Fats

c. Glycemic index

d. Glycogen

e. Starch

Water dissolves salt (NaCl) into sodium and chloride ions, thus salt is the

a. Solution

b. Solute

c. Solvent

The bonds between two water molecules are

a. Ionic bonds

b. Covelent bonds

An atom with a negative charge has

a. More protons than electrons

b. More electrons than protons

Mitosis produces ____ cells and meisosi produces ____ cells.

a. Gametes, somatic

b. Sperm, egg

c. N, 2n

d. Somatic, gametes

A bottleneck can be caused by

a. Natural selection

b. Natural disaster

c. Indiscriminate breeding

d. Small gene pool

Genetic drift occurs in ____ populations

a. Variable

b. Large

c. Small

d. Geographically close

The total of all alleles available in a population

a. Genetic drift

b. Gene flow

c. Gene pool

d. Genetic variability

Osmosis is an example of ____ transport of water requiring ____.

a. Active... energy

b. Active... no engery

c. Passive... no engery

d. Passive... engery

Diffusion is an example of

a. Exocytosis

b. Osmosis

c. Endocytosis

d. Passive transport

What roles do molecules of nucleic acids play in living organisms?

a. Structural molecules

b. Transport molecules

c. Information molecules

d. Contractile molecules

Where does protein synthesis take place?

a. Nucleus

b. DNA

c. Golgi apparatus

d. Ribosomes

Which of the followig is not one of the most common element in living organisms?

a. Nitrogen

b. Water

c. Carbon

d. Oxygen

e. Hydrogen

When an organism has identical alleles for a gene, it is

a. Recessive

b. Dominant

c. Homozygous

d. Heterozygous

When Mendel crossed the P¹ plants, the F¹ generation expressed the ____ phenotype.

a. Recessive

b. Dominant

c. A & C

A human somatic cell has

a. 46 chromosomes

b. 23 chromosomes

c. 23 gametes

d. N chromosomes

How many codons are required to make a protein 100 amino acids long?

a. 100

b. 300

c. 302

d. 102

e. 46

The two basic types of cells are ____ and ____.

a. Bacteria... and all others

b. Protists... and all others

c. Plants... and all others

d. Animals... and all others

Plants produce ____ from gluclose

a. Protein

b. Cellulose

c. Lactose

d. Glycogen

Which of the following is not a type of biological molecule?

a. Water

b. Lipid

c. Protein

d. Carboydrate

e. A & D

The biggest differences between meiosis and mitosis, is that meiosis separates _____ and mitosis separates _____.

a. Homologous chromosomes, sister chromatids

b. Sister chromatids, homologous chromosomes

c. Somatic cells, gamete cells

d. Autosomes, sex chromosomes

A changes in the genetic make up of a population from generation to generatoin:

a. Gene flow

b. Mutation

c. Genetic drift

d. Microevolution

Genetic drift will not occur if...

a. Gene flow is absent

b. There is natural selection

c. There is mutation

d. The population is large

What is the ultimate source of genetic diversity?

a. Mutation

b. Microevolution

c. Natural selection

d. Gene pool

Un-natural selection in animals is a result of ____ choosing which traits are successful

a. Environment

b. Humans

c. Parents

d. Populations

e. A & B

True diffusion does not require energy.

True or false

Which of the following is a function of plasma membrane proteins?

a. Cell control

b. Cell to cell recognition

c. Intracellular digestion

d. Protein regulation

e. Protein synthesis

Proteins functions as all of the following in the body but...

a. Structural molecules

b. Transport molecules

c. Storage molecules

d. Information molecules

Water is an important _____ in living organisms

a. Solvent

b. Solute

_____ is the primary mechanism of microevolution

a. Genetic drift

b. Adaption

c. Natural selection

d. Genetic variability

The result of the founder effect is...

a. Natural selection

b. Natural disaster

c. Large gene pool

d. Small gene pool

What are bats evolutionary adaptions?

           e  e 

         E  Ee Ee

          e  ee  ee

Therefore, there is a 50% chance of the child being born with blue eyes.

Gluclose is a

a. Polysacchride

b. Monosacchride

Cellulose is a

a. Cellulose

b. Polysaccharide

c. Disaccharide

Starch is a

a. Monosaccharide

b. Polysaccharide

c. Disaccharide

Sex-linked traits is the ____ pair of chromosomes

a. 46

b. 23

c. 56

d. 3

Fructose is a

a. Monosaccharide

b. Polysaccharide

c. Disaccharide

                   x^c     y

               x^C x^Cx^c  x^Cy

              x^c  x^cx^c  x^cy

50% would have color blindness.