Answers41111de1 ECAD Fall 2026 - Q2 - NM-Biology - S1Lab: Mouse Genetics (One Trait)

Lab: Mouse Genetics (One Trait) — Cumulative exam Answers

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Line graphs that indicate time along the x-axis can be used to predict what would happen to dependent variables in an experiment at a later point in time

A
only if the existing line shows an upward trend.
B
only if the existing line shows a downward trend.
C
if a new variable was introduced to the experiment.
D
if the experiment continued under the same conditions.
42
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An animal cell (left) and a plant cell (right) are shown.Which organelle, labeled X in the diagram, is found in both plant and animal cells?

Question illustration
A
the cell wall
B
the cell membrane
C
mitochondrion
D
ribosome
43

Which series of diagrams correctly represents the order of mitosis?

A
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromosomes line up at the center. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the cell is divided.
Option A
B
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the chromosomes line up at the center.
Option B
C
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromosomes line up at the center. In step 4, the chromatids separate from each other and are pulled to opposite ends of the cell.
Option C
D
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 3, the chromosomes line up at the center. In step 4, the cell is divided.
Option D
44

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

A
cell membrane
B
cytoplasm
C
endoplasmic reticulum
D
mitochondrion
45

Dani wants to measure the volume of a pebble. Which tool will give the most accurate measurement?

A
a ruler
B
a tablespoon
C
a measuring cup
D
a graduated cylinder
46

Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

A
There would be no difference between the functioning of the cells because the chloroplasts are not essential cell structures.
B
The second cell would become larger because it would have fewer chloroplasts regulating its size and shape.
C
The second cell would shrink because it would not be able to store water and maintain cell shape.
D
The second cell would not be able to produce as much food because it could not capture very much sunlight.
47

Which equation represents fertilization?

A
haploid + diploid = diploid
B
diploid + haploid = haploid
C
haploid + haploid = diploid
D
diploid + diploid = diploid
48

Which blood type could be given as a transfusion for patient with AB blood when the RH factor is unknown?

A
O+
B
A+
C
AB+
D
AB–
49

Which is the first type of cell to differentiate?

A
neuron
B
epithelial cell
C
muscle cell
D
blood cell
50

Which type of information is best represented by a chart?

A
the sequence of chemical reactions in photosynthesis
B
the percentage composition of gases in car exhaust
C
the rate of carbon dioxide production during exercise
D
the numbers of male and female fish in a lake

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