Question

Question 11
Which table correctly describes the plant tropism?

A.


Tropism Description
heliotropism response to the Sun
thigmotropism response to water
phototropism response to light
hydrotropism response to gravity
gravitropism response to touch



B.


Tropism Description
heliotropism response to light
thigmotropism response to gravity
phototropism response to the Sun
hydrotropism response to water
gravitropism response to touch



C.


Tropism Description
heliotropism response to light
thigmotropism response to the Sun
phototropism response to water
hydrotropism response to touch
gravitropism response to gravity



D.


Tropism Description
heliotropism response to the Sun
thigmotropism response to touch
phototropism response to light
hydrotropism response to water
gravitropism response to gravity
a
A
b
B
c
C
d
D
Question 12
Unlike photosynthesis, some form of cellular respiration occurs in

a
animal cells only
b
plant cells only
c
all cells, all the time
d
all cell types, but plant cells
Question 13
A frame-shift mutation has the potential to change the

a
chemistry of phosphate groups in a strand of messenger RNA.
b
types of sugars in DNA and shift these sugars to the right.
c
order of hydrogen bonds in DNA before the shift.
d
sequence of nitrogen bases in a strand of messenger RNA, and the protein made
Question 14
Why do viruses need living hosts, such as bacteria or eukaryote cells?


a
Viruses have a cellular structure which never requires a host.
b
The host cell is the source of food for the virus.
c
Viruses depend on a host cell because they lack their own DNA or RNA.
d
Viruses depend on the host cells that they infect to reproduce/replicate.
Question 15
If a human cell has more or less than the correct number of chromosomes, what is a likely result? Select all that apply.
a
It can cause cell cloning in humans.
b
It can cause mutations in the DNA of the human.
c
It can cause the human's DNA to replicate.
d
It can result in lower human diversity.
e
It can result in humans not being able to reproduce
Question 16
During DNA replication prior to meiosis, a frameshift mutation occurs. Will this mutation be inherited?

a
Yes, because the error happened in a gamete.
b
Yes, because meiosis makes exact cellular copies.
c
Yes, because frameshift mutations are always passed on to offspring.
d
Yes, because the error happened in a somatic cell.
Question 17
Under what condition will diffusion take place most rapidly?

a
movement against a concentration gradient
b
movement from an area of low concentration to high concentration
c
movement from an area of high concentration to an area of low concentration
d
movement through a permanent barrier
Question 18
Which of the following statements are true with regard to recombinant DNA? (Select correct two responses)

Addgene: Molecular Biology Reference

a
Recombinant DNA cis only found in prokaryotic cells.
b
Recombinant DNA can be used to create a transgenic organism.
c
Recombinant DNA is used to produce a huge variety of cleaning products.
d
Recombinant DNA is produced by putting together DNA from at least two sources.
Question 19
Using chromosomal analysis, a biologist working on a prototype can count and examine an individual's chromosomes. This technique helps a biologist to


a
predict the number of possible variations of a gene.
b
identify the total number of gene defects in an individual.
c
detect an unusually large amount of extra genetic material.
d
compare physical similarities between fraternal twins.
Question 20
Which term describes genetic material joined together from two different sources?

Classic experiments: DNA as the genetic material (article) | Khan Academy

a
genome sequencing
b
recombinant DNA
c
genome organization
d
mitochondrial DNA

Answer 1

11. D — heliotropism: Sun; thigmotropism: touch; phototropism: light; hydrotropism: water; gravitropism: gravity.

12. C — all cells, all the time.

13. D — sequence of nitrogen bases in mRNA and therefore the protein made.

14. D — viruses depend on host cells to reproduce/replicate.

15. B and E — an abnormal chromosome number is a chromosomal mutation and can cause infertility/failed reproduction.

16. A — Yes, because the error happened in a germ-line cell (a gamete precursor) and can be passed to offspring.

17. C — diffusion is fastest from high concentration to low concentration.

18. B and D — recombinant DNA can create transgenic organisms, and is produced by joining DNA from two or more sources.

19. C — it can detect an unusually large amount of extra genetic material.

20. B — recombinant DNA.