In fruit flies, the color of the eyes is sex linked (on the X chromosome). Complete the cross of the flies in the image to
determine the possible offspring produced (Homozygous white eyed female x red eyed male). Red eyes are dominant (R), White eyes are recessive (r).
What percentage of the female offspring are expected to have red eyes?
a
100%
b
75%
c
50%
d
25%
e
0%
Question 2
Review the food chain below and consider the flow of energy. If the grass has 1000 units of energy, approximately, how many units of energy will be transferred to the frogs.
a
1000 units
b
900 units
c
100 units
d
10 units
e
Impossible to determine
Question 3
The model shows part of how carbon is cycled between living organisms.
image b43ccec60a054a2dbf9c8b5eba8bc2a8
The (bottom) green box in the model represents organisms that remove carbon dioxide from the atmosphere to recycle it. Which BEST describes these organisms?
a
consumers that make energy by taking in carbon dioxide when they inhale
b
producers that carry out photosynthesis to make carbon-rich sugars
c
bacteria that combine carbon dioxide with nitrogen to make nutrients
d
fungi that break down oxygen and release carbon dioxide in exchange
Question 4
How does the human body return carbon to the atmosphere in the carbon cycle?
a
Formation of Oxygen
b
Photosynthesis
c
Cellular respiration
d
Formation of glucose
Question 5
Photosynthesis and cellular respiration are the driving forces behind which of the following cycles?
a
nitrogen cycle
b
carbon cycle
c
cell cycle
d
bi cycle
Question 6
Directions: Watch this video and then use the information below to answer any questions that follow.
There are three different alleles for blood-type: A, B, and O. A and B are dominant over O. If a person has A and B genes, he or she has blood-type AB. This is referred to as a codominant pattern of heredity.
Jane's mother and father have type B blood. When Jane's blood was tested, she found she had a blood-type of O. Select the best response from the options below.
Modes of Inheritance | BioNinja
a
One of them has a recessive gene for type O blood.
b
Both parents have a recessive gene for type O blood.
c
One of them is homozygous for type B blood.
d
Both parents are homozygous for type B blood.
Question 7
Examine the plant cell diagram, which shows glucose being made from carbon dioxide and water.
How does the cell obtain energy for the process?
a
The cell makes the needed energy from soil nutrients.
b
The cell makes the needed energy in mitochondria.
c
The cell obtains the needed energy from food.
d
The cell obtains the needed energy from sunlight.
Question 8
An extraterrestrial planet has organisms that reproduce with DNA the same way as organisms on Earth. A common organism dwelling on this planet have eyes that are either triangular or round. Triangular eyes (T) are dominant to round eyes (t). A Punnett square should be made to predict the offspring of two of these extraterrestrials with the genotypes TT and Tt.
What is the probability that an offspring would have triangular eyes?
a
0:4
b
1:4
c
2:4
d
3:4
e
4:4
Question 9
Kali designs a set-up to investigate germinating pea seeds. She fills a jar with seeds that have soaked in water.
In the jar, she places a beaker that contains a solution of bromothymol blue. Bromothymol blue turns green in the presence of carbon dioxide.
She will record observations on Day 1, wait 24 hours, and record again on Day 2.
Which question has Kali MOST LIKELY ASKED as she set up this investigation?
a
Do germinating peas absorb water in the process of photosynthesis?
b
Do germinating peas release carbon dioxide in the process of respiration?
c
Do germinating peas release oxygen in the process of respiration?
d
Do germinating peas release water in the process of photosynthesis?
b. Do germinating peas release carbon dioxide in the process of respiration?
Answer all of them
1. The possible offspring produced from the cross of a homozygous white-eyed female and a red-eyed male would be:
- 100% of females with red eyes (X^rX^R)
- 100% of males with red eyes (X^rY)
2. It is impossible to determine how many units of energy will be transferred to the frogs without information about the energy efficiency of the food chain.
3. The bottom green box in the model represents producers that carry out photosynthesis to make carbon-rich sugars.
4. The human body returns carbon to the atmosphere through cellular respiration.
5. Photosynthesis and cellular respiration are the driving forces behind the carbon cycle.
6. Jane's blood type being O suggests that both her parents have a recessive gene for type O blood.
7. The cell obtains the needed energy for the process of glucose synthesis from sunlight through photosynthesis.
8. The probability of an offspring having triangular eyes in the Punnett square would be 3:4.
9. Kali most likely asked if germinating peas release carbon dioxide in the process of respiration during her investigation.