7361888
Descripción
Test por Jack Alkema, actualizado hace más de 1 año
|
Creado por Jack Alkema
hace más de 7 años
|
|
Pregunta 1
Pregunta
DNA replication results in two DNA molecules,
Respuesta
-
each with one new strand and one original strand.
-
each with two original strands.
-
each with two new strands.
-
one with two new strands and the other with two original strands.
Pregunta 2
Pregunta
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases
Respuesta
-
AGCTTG.
-
GAUCCA.
-
TCGAAC.
-
GATCCA.
Pregunta 3
Pregunta
In Figure 12–5, what is adding base pairs to the strand?
Respuesta
-
DNA polymerase
-
chromatin
-
histones
-
nucleosomes
Pregunta 4
Pregunta
In Figure 12–5, what nucleotide is going to be added at point 1, opposite from thymine?
Respuesta
-
cytosine
-
guanine
-
adenine
-
thymine
Pregunta 5
Pregunta
In eukaryotes, DNA
Respuesta
-
is circular.
-
is located in the ribosomes.
-
is located in the nucleus.
-
floats freely in the cytoplasm.
Pregunta 6
Pregunta
In both prokaryotes and eukaryotes, how many copies of the chromosome are left after replication?
Respuesta
-
1
-
2
-
3
-
4
Pregunta 7
Pregunta
Which would be greater in a eukaryote than in a prokaryote?
Respuesta
-
The number of replication forks on a strand of DNA.
-
The total amount of adenines compared to thymines in a cell.
-
The percentage of guanine nucleotides.
-
The total number of base pairs in a chromosome.
Pregunta 8
Pregunta
In which cells is the accurate transmission of information most important?
Respuesta
-
sex cells
-
bone cells
-
nerve cells
-
skin cells
Pregunta 9
Respuesta
-
a RNA molecule.
-
a protein molecule.
-
a DNA molecule.
-
an amino acid.
Pregunta 10
Pregunta
Which of the following is believed to be a key cause of immortalization of cancer cells in many tumours?
Respuesta
-
Inactivation of the telomerase enzyme.
-
Shortening of telomeres.
-
Complete loss of telomeres.
-
Reactivation of the telomerase enzyme.
Pregunta 11
Pregunta
The replication of a DNA molecule results in four copies of the same gene.
Respuesta
- True
- False
Pregunta 12
Pregunta
A DNA strand that had the sequence TACGTT would have a complimentary strand ATCGAT.
Respuesta
- True
- False
Pregunta 13
Pregunta
In eukaryotes, DNA replication proceeds in one direction along the DNA molecule.
Respuesta
- True
- False
Pregunta 14
Pregunta
Watson and Crick discovered that covalent bonds hold base pairs together at the center of a strand of DNA.
Respuesta
- True
- False
Pregunta 15
Pregunta
The tips of chromosomes are known as [blank_start]_________________________[blank_end].
Respuesta
-
telomeres
Pregunta 16
Pregunta
Eukaryotic DNA molecules need to be carefully copied and sorted, especially in the formation of [blank_start]_________________________[blank_end] cells during meiosis.
Respuesta
-
sex
Pregunta 17
Pregunta
A prokaryotic cell replicates its [blank_start]_________________________[blank_end] before it splits to form new cells, so that each new cell can have genetic material.
Respuesta
-
DNA
Pregunta 18
Pregunta
A difference between Eukaryotic DNA replication and prokaryotic DNA replication is that eukaryotic DNA replication has more [blank_start]______________________[blank_end].
Respuesta
-
points of origin
Pregunta 19
Pregunta
Identify and explain two roles of the molecule, represented by the spheres in Figure 12–10. [blank_start]d[blank_end]
Respuesta
-
adds bases and proofreads
Pregunta 20
Pregunta
Where does DNA replication happen for prokaryotes and that of eukaryotes?
Respuesta
-
cytoplasm
-
mitocondria
-
chloroplast
-
nucleus
Pregunta 21
Pregunta
When does DNA replication happen?
Respuesta
-
G1 phase
-
S phase
-
G2 phase
-
M phase
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.