Biology 5410

The gene for color blindness is X-linked. If normal parents have a son what is the probability that he inherited the gene from his mother?

100%

PP produces purple flowers. pp produces white flowers. What will the genotype be?

100% Pp

In humans a normal sperm must contain

23 chromosomes

If the DNA sequence is 5'TACAGA'3, then complementary mRNA sequence is

3'AUGUCU'5

BB = black bb= white, two black horses produce a foal with white. What is the probability of these one foal being black

3/4

Which of the following is an acceptable nitrogen base composition for double stranded DNA?

31% A; , 31% T; 19% C; 19%G

Which process requires energy?

A contractile vacuole removing water from an amoeba

The failure of homologous chromosomes to separate during meiosis is called

A nondisjunction

What type of molecule is depicted in the drawing?

A protein

A virus's DNA or RNA is surrounded by

A protein coat

The electron transport chain produces

ATP

Which of the following substances are produced by the light reactions of photosynthesis

ATP and NADPH

The initial role of chlorophyll in photosynthesis is to

Absorb light energy

The location on an enzyme where a substrate binds is call the

Active site

In RNA cells uracil is complementary to

Adenine

All the following about the structure of DNA are corrected EXCEPT

Adenine bonds to guanine

Questions 91 punnett square, which of the following is true about the offspring resulting from the cross

All expected to be tall

Question 98's Punnett square, both parents if the cross are

Black

The phenotype of the offspring indicates by box 3 would be

Black

In eukaryotes, the chromosomes are found in structure

C

Which structure best identifies this cell as a eukaryote? (Q26)

C

Composed of only carbon, hydrogen, and oxygen in a 1:2:1 ratio

Carbohydrates

6CO2 + 6H2O yields C6H12O6 + 6O2 is completed in the

Chloroplast

According to the theory of endosymbiosis

Chloroplast and mitochondria evolved when free-living prokaryotes permanently took up residence inside larger prokaryotic cells

If the action of enzyme 1 is blocked with an inhibitor, which of the following is NOT true about the effect on the pathway

Compound B will accumulate to a high level

Structure 1 can be made up of

DNA and RNA

Which of the following is a nucleotide found in DNA?

Deoxyribose, phosphate group, cytosine

Refer to the illustration above. The process shown is called

Diffusion

Which of the following does not expand energy?

Diffusion

A couple has two children. One has A blood type, the other has O. What are the parents blood types?

Either both have Type A or one has Type A and the other has Type O, or one has Type A and the other has Type B

The genotype represented by box 2 is

GGIi

Which of the following describes the nucleotide sequence that is complementary to CCATGGAATGTT

GGTACCTTACAA

Which of the following describes the nucleotide sequence that would be produced of this part of the gene were to undergo transcription? CCATGGAATGTT

GGUACCUUACAA

All the following are needed for photosynthesis EXCEPT

Glucose

Process A represents (Q45)

Glycolysis

Which of the following produce ATP?

Glycolysis and oxidative phosphorylation

Question 96's Punnett square. What is the phenotype represented by box 1

Green, inflated

Question's 90 pedigree, which of the following is a genotype of the individual marked A

Heterozygous

Organisms that have two identical alleles for a particular trait are said to be

Homozygous

Polydactyl is a dominant trade. The possible genotype of a person with this fraught could be

Homozygous dominant or heterozygous

The basis pairing of the two strands of DNA in the double helix is

Hydrogen bonding

Question 57's figure

II,IV,V,I,VI,III

When during cell division do chromosomes move to opposite poles of the cell?

Immediately following DNA replication

The electron transport chain is located

In the cristae of the mitochondria

Refer to the illustration above. Graph 1 demonstrates that the rate of photosynthesis (Q54)

Increases in response to increasing light intensity

Glycolysis

Is the break down of glucose to provide pyruvic acid

Which of the following is not a characteristic of facilitated diffusion?

It moves substances against a concentration gradient

Which of the following is not a characteristic of fermentation ?

It requires energy

Which is true about karyotype shown above (Q 79)

It shows a female with a condition that results from a nondisjunction

All the following are true about RNA except

It's bases are adenine, thymine, guanine, and uracil

This cell is most likely an animal cell because it

Lacks a cell wall

Also known as fats

Lipids

Structure E contains digestive enzymes used by the cell. This structure is a

Lysosome

Which of the following is a correct association?

Lysosome: digestive enzyme for intracellular use

Cells that are involved in active transport, such as cells of the intestinal epithelium, utilize large quantities of ATP. In such cells there are

Many mitochondria

Which of the following is not found in bacteria?

Membrane-bound nucleus

Used to produce energy for the cell

Mitochondria

A molecule that is the cells primary food source

Monosaccharides

What are the products of the light reaction of photosynthesis

NADPH O2 and ATP

Which of the following is found in eukaryotes but NOT in prokaryotes

Nuclear membrane

A molecule used to make DNA

Nucleotides

Contains the cells DNA

Nucleus

After meiosis the number of chromosomes in a gamete is ___ the number of chromosomes in the parent cell

One-half

Which of the following statements about photosynthesis are correct

Oxygen is generated and carbon dioxide is consumed

The process which a cell engulfs large particulate matter is called

Phagocytosis

Which of the following are found in both DNA AND RNA

Phosphate group, guanine, and cytosine

Which fruit extract is most effective at neutral pH?

Pineapple

Which fruit extract operates over the broadest pH range? (Q3)

Pineapple

Which of the following is present in both prokaryotic and eukaryotic cells?

Plasma membrane

In humans, the trait for height, skin color and hair color involve many genes. The inheritance patters of these traits is referred to as

Polygenic inheritance

What principle states that during gamete formation genes for different traits separate without influencing each other's inheritance

Principle of independent assortment

During which phase of mitosis do the chromosomes begin condensing and become visible?

Prophase

Long chains of amino acids

Proteins

Which best describes the advantage of crossing over during meiosis

Provides a source of genetic variation

All the following statements about RNA are correct except

RNA contains nitrogen based Thymine

What is produces during transcription?

RNA molecules

Most mutations result from

Random events

Which of the following involve the matching of complementary base pairs?

Replication, transcription and translation

Which phase of the cell cycles involves DNA replication only?

S Phase

A polysaccharide found in plants whose function is storage is

Starch

Which of the following is NOT a function of proteins?

Store and transmit genetic information

Which structure attaches this organism to the cell surface? (Q 36)

Structure 3

Glucose + fructose = ?

Sucrose

During which phase of mitosis do the chromosomes uncoil at opposite ends of the cell followed by the formation of the nuclear membrane

Telophase

Where does a plant obtain the carbon that contributes to its mass

The carbon enters the leaves as a gas

What happens during the process of translation?

The cell uses information from mRNA to produces proteins

Process C represents

The electron transport chain

Which statement regarding protein synthesis is FALSE?

The mRNA is NOT necessary for proper protein synthesis

Which of the following best describes what will happen if cells are placed in a very salty solution?

The water will move from inside the cell to the outside

Why does the mass of of Tube 1 remain relatively unchanged throughout the experiment?

There is no concentration gradient to drive the movement of water

All the following are correct about prokaryotes except

They contain a small mitochondria

How many codons are needed to specify three amino acids?

Three

Meiosis differs from mitosis in that

Two cell divisions take place and haploid cells are produced from diploid cells

Which of the following nucleotide bases is found in RNA but not DNA?

Uracil

Which of the following is a waste product of aerobic cell respiration

Water & carbon dioxide

Which is NOT a characteristic of water?

Water is less dense than ice

Why does the mass of Tube 3 increase while the mass of Tube 4 decreases?

Water is moving into tube 3, water is moving out of tube 4

Sickle-cell anemia is recessively inherited disorder that affects the protein hemoglobin in red blood cells. The possible genotype could be

rr

Small round bacteria that grow in a chain are called

streptococci

The genes encodong for the eukaryotic protein sequences are passed from one generation to the next in

tRNA