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WorksheetsFIVIZZ: ROAD TO MIDSEM - BIOLOGY 4
Total questions: 15
Worksheet time: 8mins
which of the following is most likely to be fatal?
missense mutation
point mutation
chromosomal mutation
all mutations are fatal
which of the following is FALSE regarding gene therapy?
gene therapy replaces faulty genes with functional genes
gene therapy is widely used in Asia and Europe with great success
gene therapy may be effective in the treatment of cancer
gene therapy could be used to treat the genetic diseases caused by a defect in a single gene
Klinefelter's syndrome is an example of _______
autopolyploidy
allopolyploidy
euploidy
aneuploidy
spartina anglica is an example of _______
allopolyploidy
autopolyploidy
aneuploidy
autohexaploidy
what is the type of chromosomal aberration for the diagram below?
ABCDEFGH ----> ABCDFGH
deletion
duplication
inversion
translocation
which of the following equations would be appropriate when considering the composition of DNA bases?
amount of A + amount of T = amount of G + amount of C
amount of A = amount of G
amount of A = amount of G = amount of T = amount of C
amount of A + amount of G = amount of T + amount of C
the noncoding segments of eukaryotic DNA are called _______
introns
exons
replicons
codons
UAA is a _____ which codes for _____.
promoter sequence; no amino acid
start codon; methionine
stop codon; no amino acid
stop codon; methionine
the physical location of a particular gene on a chromosome is called
an allele
a locus
a trait
linkage
how many unique gametes could be produced through independent assortment by an individual with the genotype AaBbCCDdEe?
4
8
16
32
if the sequence of a section of DNA is 5'- CGTACCTACCGAC-3', what is the appropriate sequence for the new DNA after its replication?
3'-GCATGGATGCTG-5'
3'-GCAUGGAUGCUG-5'
5'-GCAUGGAUGCUG-3'
5'-GCATGGATGCTG-3'
If 20% of the bases in a DNA molecule are thymine, what percentage of the bases are cytosine?
40%
30%
20%
60%
during transcription of DNA to mRNA, __________
an RNA polymerase must first bind to the promoter
an RNA polymerase moves along the DNA strand in the 5' to 3' direction
transcription is initiated by the start codon
the 3' end of the mRNA molecule is produced first
according to Mendel, what kind of genes 'disappear' in F1 pea plants?
sex-linked
dominant
recessive
codominant
a carrier individual for a genetic characteristic is
heterozygous for dominant character
heterozygous for recessive character
homozygous for dominant character
homozygous for recessive character
