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WorksheetsMeiosis, Protein Synthesis, & Mutations
Total questions: 37
Worksheet time: 19mins
What phase of meiosis is this cell in?
interphase
metaphase I
metaphase II
anaphase I
What phase of meiosis is this cell in? (hint: look at what is moving)
anaphase I
metaphase II
prophase I
anaphase II
How many total chromosomes do human somatic cells have?
2
23
46
3
How many chromosomes do human sperm/egg cells each have?
2
23
46
3
Where does meiosis happen in the body?
ovaries/testes
skin
heart
liver
Once you reach the end of meiosis I, are the cells diploid or haploid? (HINT: have you reduced the chromosome #?)
diploid
haploid
I don't know :-(
Are sperm cells haploid or diploid?
diploid
haploid
I don't know :-(
When does the DNA copy itself?
before the start of mitosis
before the start of meiosis I
only during interphase
all choices are correct
When a sperm cell and an egg cell fuse together it is called?
mitosis
meiosis
nondisjunction
fertilization
After fertilization, what do we call the fertilized egg?
sperm
zygote
egg
gamete
What pairs up during prophase I of meiosis?
homologous chromosomes
sister chromatids
spindle fibers
centrioles
A gene codes for the making of a ...?
carbohydrate
amino acid
protein
ribosome
DNA instructions are transported to the cytoplasm by...?
DNA
nucleus
tRNA
mRNA
During what phase of meiosis does crossing over happen?
prophase II
prophase I
metaphase I
anaphase II
What is a nucleotide made of?
animo acids
sugar, phosphate, nitrogen base
sugar, phospholipid, nitrogen base
carbohydrate, phospholipid
What is the name of the process where DNA information is converted to mRNA?
translation
transcription
meiosis
replication
Which of the following is part of the structure of RNA?
double-stranded molecule
deoxyribose
uracil
thymine
The enzyme that converts DNA into RNA is?
RNA polymerase
DNA polymerase
helicase
ligase
If a gene consisted of 60 nucleotides, the protein made from the gene would be about...
180 amino acids long
60 amino acids long
20 amino acids long
10 amino acids long
Give an example of an organism that is considered a prokaryote.
mushroom
ameoba
virus
bacteria
Where does transcription take place in a PROKARYOTE?
nucleus
cytoplasm
ribosome
nucleolus
Where does translation take place in a EUKARYOTE?
nucleus
ribosome
nucleolus
protein
Amino acids are transported to the ribosomes by?
tRNA
mRNA
DNA
rRNA
The following DNA sequence TACGGCAAT would look like ? in the mRNA.
TACGGCAAT
ATGCCGTTA
UACGGCAAU
AUGCCGUUA
The following is an example of which kind of mutation?
substitution
insertion
deletion
Mutations are ...?
always bad
always good
always neutral
any of these depending on the change & gene affected
What type of mutation still codes for an amino acid just the wrong one?
silent
misseense
nonsense
noen of these
What type of mutation still codes for the same amino acid?
silent
missense
nonsense
none of these
What causes a nondisjunction?
when sister chromatids don't separate during anaphase II
when chromosomes line up during metaphase
when crossing over happens during prophase I
How is the structure of RNA different from DNA?
RNA uses uracil instead of thymine
RNA is a single-stranded molecule
RNA uses a different sugar than DNA
all of these are correct
What process is happening in this picture?
DNA Replication
transcription
translation
meiosis
What is A pointing to in the picture?
mRNA
DNA
RNA polymerase
nucleus
What is C pointing to in this picture?
mRNA
DNA
RNA polymerase
nucleus
What is A pointing to in the picture?
mRNA
protein
ribosome
nucleus
What is C pointing to in the picture?
mRNA
ribosome
protein
nucleus
What is A pointing to in the picture?
mRNA
tRNA
ribosome
amino acid
What is B pointing to in the picture?
tRNA
mRNA
ribosome
amino acid
protein
