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WorksheetsDNA Structure and Meiosis
Total questions: 25
Worksheet time: 13mins
DNA, or deoxyribonucleic acid, is found inside the ______ of every eukaryotic cell?
nucleus
lysosome
ribosome
vacuole
The shape of DNA is described as a twisted ladder, the scientific name for this shape is ______ ______.
fusili
staircase
double helix
single helix
The sides or "backbone" of the DNA strand is made up of deoxyribose sugars and phosphate groups, the middle of each double helix strand is made up of what molecule listed below?
oxygenated base
nitrogenous base
carbonic base
Army base
How many nitrogenous bases are found in DNA?
1
2
3
4
Adenine, Cytosine, Guanine, and Thymine are the 4 nitrogenous bases found in DNA. Which pairings are correct?
A & C ; G & T
C & T ; A & G
A & T ; C & G
A & W ; BB & T
A nitrogenous base, deoxyribose sugar, and phosphate group all join to create a monomer known as a _______.
nucleic acid
nucleotide
nuclear envelope
amino acid
The polymer created by the joining of nucleotide monomers is called a _______ _____.
nucleotide
nuclear envelope
nucleic base
nucleic acid
DNA strands are joined by non-identical nitrogenous bases ( a&t , c&g) which referred to as being ________, this means that they go together, like peanut butter and jelly, or tuna flavored cotton candy.
complimentary
opposites
anticodons
adversarial
If a DNA strand is 12% Adenine, how much is made of Cytosine?
12%
24%
76%
38%
Using base pair rules select the correct complimentary strand of DNA
AAGGTGATC
CCAAGCGT
TTCCACTAG
AATTTGCTC
TTAAACGAG
What phase of the cell cycle sees the replication of DNA?
Prophase
Interphase (G2 phase)
Anaphase
Interphase (S phase)
Mitosis and meiosis are both examples of what?
gamete production
somatic cell production
cell division
cell addition
Somatic cells (body cells) are created through which process
parthenogenisis
mitosis
meiosis
spontaneous spawning
Gametes (sex cells) are produced through which process?
mitosis
meiosis
fertilization
parthenogenesis
DNA replication occurs when one double stranded molecule of DNA is made into two double stranded molecules of DNA. This process is said to be __, which means that the new DNA molecule is made from one old strand and one new strand.
Super conservative
Semi conservative
conservative
super duper conservative
Which number shows the correct interpretation of "semi conservative" when talking about DNA?
1
2
3
not pictured
Haploid cells are represented by which single letter?
h
n
g
s
Diploid cells are represented by ___?
4n
3n
1/2n
2n
A diploid cell has 24 chromosomes, the gamete would have ____ chromosomes
48
6
12
24
A haploid cell has 15 chromosomes in it. The diploid cell would contain ___ chromosomes
7.5
45
60
30
Gametes are _______ cells.
diploid
triploid
monosomy
haploid
Somatic cells are ______ cells. (in most organisms)
diploid
triploid
haploid
monoploid
The failure of one or more pairs of homologous chromosomes to separate normally during meiosis, which may result in an abnormal distribution of chromosomes in the daughter cells.
Mutagen
conjunction
disjunction
nondisjunction
Trisomy occurs when there is an additional ______ in a gamete
base pair
chromosome
nucleus
membrane
A gamete that is missing a chromosome is can cause a condition called ________.
monosomy
trisomy
nucleus
haploid
