Trust me JUST took the test
And forgot about the part 2…
1. DNA unzips in the nucleus
2. Transcription occurs
3. mRNA moves to the ribosome
4. Translation occurs
5. Protein assembled at ribosome
1. Which set of mRNA codons could genetically code for a protein with the following amino acid composition.
2.In rabbits, B represents the alleles for black coat and b represents the alleles for white coat. Black is dominant over white. If a rabbit has the genotype Bb, what is the rabbit’s phenotype?
3. A simple change in DNA results in.
4. mRNA is released from the ______ into the cytoplasm where the ______, the organelle responsible for assembling proteins, are located.
5. And this illustration, DNA is unzipping to make mRNA during transcription. DNA acts as a blueprint, pairing bases to make single strands of RNA. Identify the pairings you would see when DNA makes RNA.
6. In horses, black (B) is the dominant color; brown (b) is the recessive color. Consider the cross seen here, between two black horses (Bb). What is the probability that these two horses will have a foal that is brown?
7. Sickle cell disease in an inherited blood disorder. It is a recessive trait. That means you can carry one recessive allele for the disease and not have the symptom. I’m this case, if you were a carrier and did not have the disease, your genotype for sickle cell would be?
8. Your teacher gives you this model of transcription. Choose the statement that best describes the role of DNA in transcription.
9. A DNA molecule has the sequence GCATCCGA. What is the mRNA sequence resulting for this DNA code?
10. DNA is typically found in cells in the form of a very long strand that is coiled many times and contains thousands or millions of nitrogen bases. Which term best describes this very long molecule of DNA?
11. In the structure of DNA, which nucleotide always pairs with adenine?
12. Without ribosomes, a cell would not produce.
13. ______ are different forms of the same gene that are always found on the same position of two homologous chromosomes.
14. A portion of this DNA, known as a _______, is responsible for the inheritance of a trait, like eye color or blood type in humans.
15. All organisms undergo protein synthesis. The first step of protein synthesis, in which a DNA strand is used to make a complementary mRNA strand, is called?
Answers:
1. D) CCA-GAC-GGC-AAA
2. B) Black
3. A) A Mutation
4. D) Nucleus, Ribosomes
5. B) A-U and C-G
6. B) 25%
7. B) Heterozygous
8. C) A strand of DNA is used as a template for the formation of RNA
9. C) CGUAGGCU
10. A) Chromosome
11. C) Thymine
12. B) Proteins
13. A) Alleles
14. C) Gene
15. C) Transcription
1 answer
1 answer