Science 10 Summative Test

Which of the following is the complementary strand that is produced if this strand is replicated?

• TCGTCCGTCTAG

• AGCAGGCAGGGT

• TTACGGTCACCA

• UCGUCCUCUAGA

What would result if transcribed into an mRNA?

• UUACGGUCACCA

• AGCAGGCAGAUC

• AGCAGGAGATCG

• TCGTCCGTCTAG

What would be the sequence of nucleotides that are arranged linearly during translation?

• TCGTCCGTCTAG

• AGCAGGCAGAUC

• AAUGCCAGUGGU

• UCGUCCGUCUAG

Why RNA is important to the cell?

• It carries the information of the gene in the DNA.

• RNA polymerase enzyme binds and opens the DNA molecule that will be transcribed.

• The RNA leaves the nucleus, and the message is translated into an amino acid sequence in the protein.

• RNA brings the information from the DNA, which is the nucleus, and brings it to the cytoplasm and serves as a template for protein synthesis.

Which of the following codons is a STOP codon?

• UGA

• AUG

• UAA

• UAG

ATTTGAGCC - original; ATTGAGCC - mutated. What type of mutation is shown in the DNA sequence?

• Deletion

• Insertion

• Substitution

• Translocation

When can a mutation be passed on to offspring? When the mutation _________________

• occurs in the somatic cells

• occurs during mitosis and meiosis

• is present during or occurs during mitosis

• is present during or occurs during meiosis

What will be the result if a cytosine base is inserted at the beginning of a DNA Codons ATG ATG ATG?

• CA TGA TGA TG

• CAT GAT GAT G

• CATG ATG AT

• CAT ATG GAT G

During embryonic development, fish, chicken, salamanders, and humans show homologous structures. All of them have a tail during early development, even if that tail does not appear in the fully developed organism. Which can be determined in the embryos of these organisms?

• The organisms share a common ancestry.

• The organisms belong to the same genus.

• the organisms are native to the same geographic areas.

• The organisms will brow into anatomically similar adults.

Birds and butterfly wings have similar functions but are different in structure and are not derived from a common ancestral feature. It evolved in response to a similar environmental challenge. What type of structures are birds and butterfly wings?

• Analogous structure

• Homologous structure

• Camouflage structure

• Mimicry