Name the two pairs of DNA bases.
BONUS: What pairs with A in mRNA?
G-C
A-T
BONUS: A-U
Transcription reads ______ and makes ______.
A. mRNA, DNA
B. DNA, mRNA
C. proteins, mRNA
D. mRNA, proteins
BONUS: Where does this take place?
B. DNA, mRNA
BONUS: the nucleus
Translation reads ______ and makes ______.
A. mRNA, DNA
B. DNA, mRNA
C. proteins, mRNA
D. mRNA, proteins
BONUS: Where does this take place?
D. mRNA, proteins
BONUS: ribosomes in the cytoplasm
Which must happen FIRST in the cell cycle?
a. the cytoplasm divides
b. chromosomes split in two
c. chromosomes line up
d. DNA is replicated
d. DNA is replicated
________ reproduction uses mitosis and results in identical offspring. _______ reproduction uses meiosis and results in genetically different offspring. (asexual / sexual)
asexual, sexual
What is the smallest unit?
a. a nucleotide
b. a protein
c. a chromosome
d. a gene
a. a nucleotide
Which type of RNA is produced in transcription?
mRNA
_______ are three letters in mRNA that tell the ribosome which amino acid to add to the protein.
A. anticodons
B. codons
C. nucleotides
D. bases
B. codons
Does the following image show mitosis or meiosis?
BONUS: How do you know?
mitosis
BONUS: it only produces two cells
Which cell division process is necessary for sexual reproduction?
mitosis or meiosis
meiosis
Which three are the three parts of a nucleotide?
sugar
codon
phosphate
gene
base
sugar, phosphate, base
Transcribe the following DNA strand into mRNA:
A T T G C T A C G
BONUS: How many amino acids does this represent?
U A A C G A U G C
BONUS: 3 amino acids
What two things determine which amino acid gets added to the protein?
- which nucleic acids ("letters")
- what order they are in
Where did the first DNA come from?
a. cells created their own DNA
b. nucleotides randomly combined
c. God created the first cells with DNA
c. God created the first cells with DNA
Matching pairs of chromosomes in a diploid cell are called __________.
a. homologous chromosomes
b. cousin chromosomes
c. daughter chromosomes
d. homosomes
a. homologous chromosomes
Draw the shape of a DNA strand.
BONUS: What is a coiled, condensed DNA strand called?
BONUS: a chromosome
Draw the shape of an mRNA strand.
Draw a protein being made by a ribosome.
What are the pieces of a protein called?
Place the letters of the following pictures in order for the process of mitosis.
BONUS: Which phase does not have chromosomes?
B, D, C, F, E, A
BONUS: B
diploid, haploid
How do DNA and genes demonstrate irreducible complexity? Name three ways.
- DNA bases have to pair perfectly
- DNA has to be read to make proteins
- you need mRNA to make proteins
- you need proteins to make more DNA
What does DNA stand for?
(closest spelling gets the points!)
Deoxyribonucleic Acid
What amino acid would CAU code for?
histidine
Describe two ways an organism could reproduce asexually. You may draw and label diagrams as part of your answer.
The haploid pollen and ovule cells for snapdragons each have 8 chromosomes. How many chromosomes do the diploid embryos in the seeds have?
a. 4
b. 8
c. 16
d. 32
c. 16