Cell Respiration
Photosynthesis
DNA Replication, Protein synthesis
Mitosis & Meiosis
Inheritance
100
What is the primary substrate used in aerobic respiration?
Glucose
100
Where does the carbon come from that is used to form glucose?
CO2 in the air
100
Which enzyme is responsible for unwinding the DNA double helix during transcription?
RNA polymerase
100
What stage of Meiosis is shown on the diagram below?
Anaphase II of meiosis
100
A red-flowered plant (RR) breeds with a white-flowered plant (ww). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (Rw) flowers?
100%
200
What is produced during anaerobic respiration in humans?
Lactic acid
200
The light reactions occur in the ________ and the dark reactions take place in the ________.
thylakoid membrane / stroma
200
Where would DNA polymerase III link the next nucleotide during replication?
I
200
In the following diagram, which pair represents homologous chromosomes?
4 and 6 are homologues chromosomes
200
If an organism that is homozygous recessive for a trait is crossed with a heterozygote, what is the chance of getting a homozygous recessive phenotype in the first generation?
50%
300
What is the role of NAD+ in cellular respiration?
Hydrogen and electron carrier
300
What supplies the electrons that are lost in PS I?
the electrons from PS II
300
If a person suffered from a disorder where their DNA fragments were unable to fill in the missing slots in between the fragments of the lagging strand, they would most likely have a disorder that affected which enzyme?
DNA Ligase
300
A gamete from an organism contains 31 chromosomes. How many chromosomes and chromatids will be in prophase of mitosis of this organism's liver cell?
Chromosomes: 62
Chromatids: 124
300
A man of blood group A and a woman of blood group B have a child. If both are heterozygous for the gene, what are the chances of them having a child with blood group B?
25%
400
Name the molecule labelled 12.
NADH
400
What is the purpose of splitting water in Photosystem II of the light dependent reaction?
Provides e- for PS II and H+ for the thylakoid space/generates concentration gradient
400
What would be the tRNA anticodon for the mRNA codon CAG? Find the corresponding amino acid.
Codon: GUC
Amino acid: glutamine (Gln)
400
The micrographs show four different phases from meiosis II. What is the correct order?
4-3-2-1
400
Color blindness is determined by a recessive gene (d) linked to the X chromosome. A normal vision woman whose father was color blind marries a normal vision man. What is the probability that the couple has daughter who is color-blind?
0% of girls
500
From which part to which part do hydrogen protons move during ATP synthesis in cellular respiration?
from intermembrane space → to matrix
500
Order the following steps of photosynthesis in chronological order.
1. NADPH and ATP is used to form glucose.
2. ATP is generated through chemiosmosis and ATP synthase.
3. An electrochemical gradient is established with a high concentration of H+ inside of the lumen of the thylakoid.
4. An electron from chlorophyll a becomes "excited" and jumps into an ETC
4-3-2-1
500
A research assistant is replicating the famous Meselson and Stahl experiment. She starts by growing a culture of E. coli bacteria in a medium containing heavy nitrogen 15N. She then transfers the bacteria to a new medium containing only light nitrogen 14N. After two generations, what will be the percentage of 15N and 14N DNA strands?
for several generations. This ensures that all the bacteria's DNA is "heavy" (
15N/15Nto the 15th power N / to the 15th power N
).
- She then transfers the bacteria to a new medium containing only light nitrogen 14Nto the 14th power N
and allows the bacteria to divide.
¹⁵N strands: 25%
¹⁴N strands: 75%
500
Picture depicts process of Meiosis. In Stage 1 an organism had 26 chromatids. How many chromosomes and chromatids will this organism have at interval 3?
Chromosomes:13
Chromatids: 26
500
In some carnations, flower color exhibits codominance. When crossed, red (CRCR) and white (CWCW) flowers make speckled flowers (CRCW) that show both colors.
Complete a cross between a speckled flower and a red flower. Find the phenotype ratio.
1 red: 1 speckled