Here's a completion of your questions along with an answer summary:
Question 1
What molecule stores the genetic instructions that determine an organism's traits, and codes for protein synthesis?
Answer: DNA
Question 2
What is happening in translation?
Answer: Information from mRNA is used to produce proteins
Question 3
Complete the sentence that follows, using the word bank provided. DNA contains the nitrogenous base, thymine, which is replaced by uracil in RNA.
Question 4
What is the function of mRNA in cells?
Answer: Carrying genetic information from DNA to the ribosome
Question 5
Use the codon chart below to determine the bases that will code for the amino acid Methionine (Met).
Answer:
- First Base: AUG
- Second Base: —
- Third Base: —
Question 6
Identify the mutations in the image below. (Unable to provide answers without seeing the image.)
Question 7
Label the parts of DNA in the image below. (Unable to provide answers without seeing the image.)
Question 8
Which type of chromosomal mutation involves a segment of a chromosome being reversed end to end?
Answer: Inversion
Question 9
What is DNA replication?
Answer: The process of creating a new DNA molecule from an existing DNA molecule
Question 10
According to the codon chart above, what codon represents the amino acid Histidine (His)?
Answer: CAU
Question 11
Which type of RNA brings amino acids to the ribosome during protein synthesis?
Answer: tRNA
Question 12
What type of sugar is found in RNA nucleotides?
Answer: Ribose
Question 13
Complete the statement below. Genes contain the keys for constructing proteins.
Question 14
Give the complementary DNA strand for the following: ATC GCT AAT
Answer: TAG CGA TTA
Question 15
Brown eyes (B) are dominant over blue eyes (b). Which of the following would be homozygous dominant for brown eyes?
Answer: BB
Question 16
Which is the complementary mRNA strand from the following DNA template? TTC AGC
Answer: AAG UCG
Question 17
If a heterozygous tall pea plant is crossed with a homozygous recessive short pea plant, what percentage of the offspring is expected to be tall?
Answer: 50%
Question 18
If a black chicken (BB) is crossed with a white chicken (WW) and incomplete dominance is observed, what are the expected phenotypes of the offspring?
Answer: All gray
Question 19
In cattle, coat color is controlled by codominant alleles. What are the expected phenotypes of the offspring from a red-coated cow (RR) crossed with a white-coated bull (WW)?
Answer: Red and white coat
Question 20
Complete the mRNA sequence that will be formed from the DNA sequence below, then identify the amino acids using the codon chart provided above.
DNA Sequence: TAC CGC CCC
mRNA Sequence: AUG CGC GGG
Amino Acids:
- AUG: Methionine (Met)
- CGC: Arginine (Arg)
- GGG: Glycine (Gly)
Summary of Answers:
- DNA
- Information from mRNA is used to produce proteins
- Thymine; uracil
- Carrying genetic information from DNA to the ribosome
- AUG
- (Not answered)
- (Not answered)
- Inversion
- The process of creating a new DNA molecule from an existing DNA molecule
- CAU
- tRNA
- Ribose
- Proteins
- TAG CGA TTA
- BB
- AAG UCG
- 50%
- All gray
- Red and white coat
- mRNA: AUG CGC GGG; Amino Acids: Met - Arg - Gly
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