Questão 1
Questão
Protein synthesis:
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is required for cell growth
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begins with reading of the genetic "master code" in the cell's DNA
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influences all cell structures and functions
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all of the above
Questão 2
Questão
In the DNA molecule, a sequence of three base pairs from a(n):
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codon
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anticodon
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polymerase
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none of the above
Questão 3
Questão
Transcription can best be described as the
Questão 4
Questão
Which of the following statements is true?
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Complex polypeptide chains from tRNA
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The site of transcription is within the nucleus, whereas the site of translation is in the cytoplasm
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Uracil is present in DNA in the place of thymine
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None of the above is true
Questão 5
Questão
A DNA molecule is characterized by all of the following except:
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double-helix shpae
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obligatory base pairing
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ribose sugar
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phosphate groups
Questão 6
Questão
Which of the following is not a characteristic of RNA?
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It is single stranded
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It contains uracil, not thymine
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The obligatory base pairs are adenine-uracil and guanine-cytosine
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Its molecules are larger than those of DNA
Questão 7
Questão
Nucleic acids are synthesized directly on the DNA molecule with the help of
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enzymes
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prophase
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neoplasma
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lipids
Questão 8
Questão
[blank_start]Transcription[blank_end]: Process that occurs when the double strands of a DNA segment separate and RNA nucleotides pair with DNA nucleotides
[blank_start]mRNA[blank_end]: The type of RNA that carries information in groups of three nucleotides called codons, each of which codes for a specific amino acid
[blank_start]tRNA[blank_end]: The type of RNA that has an anticodon and binds to a base pair specific amino acid
[blank_start]Translation[blank_end]: The process involving the movement of mRNA with respect to the ribosome
[blank_start]Complementary base pair[blank_end]: Uracil-adenine
[blank_start]Ribosome[blank_end]: The site of translation
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Transcription
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mRNA
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tRNA
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Translation
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Complementary base pair
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Ribosome
Questão 9
Questão
Circle the word or phrase that does not belong:
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mitosis
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meiosis
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M phase
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enzyme
Questão 10
Questão
Circle the word or phrase that does not belong:
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anaphase
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end phase
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apart
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2 chromosomes
Questão 11
Questão
Select the word or phrase that does not belong:
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meiosis
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sex cells
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telophase
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oogonia
Questão 12
Questão
Select the word or phrase that does not belong:
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zygote
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mitosis
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diploid
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46 chromosomes
Questão 13
Questão
Select the word or phrase that does not belong:
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metaphase
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prophase
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telophase
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interphase
Questão 14
Questão
The total of 46 chromosomes per cell is referred to as
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haploid
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diploid
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myoid
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none o f the above
Questão 15
Questão
A type of cell division that occurs only in primitive sex cells during the process of becoming mature sex cells is
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mitosis
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meiosis
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gamete
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differentiation
Questão 16
Questão
Splitting of the plasma membrane and cytoplasm into two during cell reproduction is called
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mitosis
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meiosis
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anaphase
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cytokinesis
Questão 17
Questão
Cell reproduction is sometimes referred to as the
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A phase
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R phase
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M phase
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X phase
Questão 18
Questão
The phase of mitosis known as the completion phase is [blank_start]telophase[blank_end].
Questão 19
Questão
The phase of mitosis known as the apart phase is [blank_start]anaphase[blank_end].
Questão 20
Questão
The position-changing phase of mitosis is [blank_start]metaphase[blank_end].
Questão 21
Questão
When a cell is not experiencing mitosis and is "between phases", it is said to be in [blank_start]interphase[blank_end].
Questão 22
Questão
When a cell begins to divide, it is said to be in the before phase, or [blank_start]prophase[blank_end].
Questão 23
Questão
The genetic code for a particular protein is passed from DNA to mRNA by a process known as:
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transcription
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translation
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interphase
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genome
Questão 24
Questão
If a strand of DNA has a base sequence of AGGC, the complimentary pair for that strand will be
Questão 25
Questão
The spindle fibers attach to each chromatid during which stage of mitosis?
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prophase
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anaphase
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telophase
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metaphase
Questão 26
Questão
During which stage of mitosis does the cleavage furrow begin to develop?
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prophase
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metaphase
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anaphase
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telophase
Questão 27
Questão
The synthesis of proteins by ribosomes using information coded in the mRNA molecule is called:
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translation
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transcription
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replication
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crenation
Questão 28
Questão
Translation can be inhibited or prevented by a process called
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cytokinesis
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cell division
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RNA interference
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meiosis
Questão 29
Questão
Select the word or phrase that does not belong:
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DNA
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adenine
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uracil
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thymine
Questão 30
Questão
Select the word or phrase that does not belong:
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RNA
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ribose
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thymine
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uracil
Questão 31
Questão
Select the word or phrase that does not belong:
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translation
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protein synthesis
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mRNA
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interphase
Questão 32
Questão
Select the word or phrase that does not belong:
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cleavage furrow
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anaphase
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prophase
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2 daughter cells
Questão 33
Questão
Select the word or phrase that does not belong:
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metaphase
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prophase
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telophase
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gene
Questão 34
Questão
The DNA molecular structure allows only two combinations of bases to occur. This is known as [blank_start]complementary[blank_end] [blank_start]base[blank_end] [blank_start]parining[blank_end].
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complementary
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base
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parining
Questão 35
Questão
The complete set of proteins synthesized by a cell is called the [blank_start]proteome[blank_end] of the cell.
Questão 36
Questão
The shape of a DNA molecule is referred to as a [blank_start]double[blank_end] [blank_start]helix[blank_end].
Questão 37
Questão
[blank_start]Meiosis[blank_end] is the type of cell division that occurs only in primitive sex cells during the process of becoming mature sex cells.
Questão 38
Questão
Mature sex cells are called [blank_start]gametes[blank_end].