AnswersKISD SS-3391B-Algebra II Honors B Exam OnlyCumulative Exam

Cumulative Exam — Cumulative exam Answers

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Mitosis is important because it allows

A
new cells to replace old damaged cells.
B
new cells to repair old damaged cells.
C
old cells to self-repair when they become damaged.
D
existing cells to take over the function of damaged cells.
42
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Which best describes the relationship between DNA, genes, and chromosomes?

A
DNA are segments of genes; the genes form tight coils called chromosomes.
B
Genes are segments of DNA; the DNA forms tight coils called chromosomes.
C
Chromosomes are segments of DNA; the DNA forms tight coils called genes.
D
Genes are segments of chromosomes; the chromosomes form tight coils called DNA.
43

Which is an advantage of flowering plants?

A
Flowers attract insects that transport gametes.
B
Flowers give greater access to sunlight.
C
Flowers help transport water and nutrients.
D
Flowers assist plants that live in the water.
44

After having the chicken pox vaccine, Marta went to a party where someone had the chicken pox virus. Which best describes why Marta did not get chicken pox?

A
Marta is not allergic to chicken pox anymore.
B
Her memory cells recognized the pathogen and started to make antibodies.
C
Her cells produced chemicals that could destroy the chicken pox virus.
D
Chicken pox can be passed only through bodily fluids.
45

Which is the best term for replicating circular pieces of DNA that often carry antibiotic-resistant genes?

A
vectors
B
viruses
C
bacteriophages
D
plasmids
46

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. A parakeet that is heterozygous for blue feathers (dominant) is crossed with a parakeet that is homozygous for white feathers (recessive). According to the Punnett square for this cross, what percentage of offspring is predicted to have blue feathers?

Question illustration
A
25 percent
B
50 percent
C
75 percent
D
100 percent
47

Which statement best describes the molecular structure of protein, along with one of the functions of proteins?

A
It is a straight chain hydrocarbon that can help fight disease.
B
It is a complex, folded chain that helps regulate cell processes.
C
It is a simple carbon, hydrogen, and oxygen molecule that creates movement.
D
It is a chain of nucleotides, and forms muscle, bone, and ligaments.
48

When a biological vector is used, which process is used to ensure there are large amounts of DNA?

A
cloning
B
electrophoresis
C
genetic engineering
D
gene isolation
49

The graph below shows the light absorbance of two kinds of chlorophyll.Which color of light does chlorophyll b absorb more of than any other color?

Question illustration
A
red
B
yellow
C
green
D
blue
50

Which is an example of a lipid?

A
cholesterol
B
glycerol
C
glycogen
D
proteins

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