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