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Laabri

4.05 Unit 4 Assessment MODIFIED

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Last updated about 1 month ago
16 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Identify the steps of protein synthesis:

DNA --> --> Protein

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Compare DNA and RNA.

DNA

RNA

Double stranded

Single stranded

Contains the base uracine (U)

Contains the base thymine (T)

Made of nucleotides containing sugar, phosphate, and a nitrogen base

Contains genetic information

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Which mRNA sequence complements the DNA sequence below?

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Which tRNA anticodon will complement this mRNA codon?

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Match the following to their role in protein synthesis.

Draggable itemarrow_right_altCorresponding Item

tRNA

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Copies the genetic code from the DNA molecule and carries it to the ribosome.

mRNA

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Stores the genetic code in the nucleus.

DNA

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Carries an amino acid to the ribosome.

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

A mutation always results in the incorrect protein being produced.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Which nitrogenous bases are needed to complete the DNA strand pictured below? Give your answer in order, from top to bottom.

  1. thymine

  2. adenine

  3. cytosine

  4. guanine

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

How would the mRNA built from the same DNA strand in #7 be different?

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Match the process to its definition.

Draggable itemarrow_right_altCorresponding Item

Translation

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The process of creating an mRNA strand from one side of DNA

DNA Replication

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The process of using mRNA to build chains of amino acids

Transcription

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The process of duplicating a strand of DNA

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

What is the function of tRNA in protein synthesis?

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

For each sequence of DNA is shown. Write the complementary mRNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence:

DNA: TAC ACC TTG GCG ACG ACT

mRNA: UGG CGC UGA

Amino Acid: Met Asn Cys

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

A mutation occurs in the previous strand of DNA and CAT becomes CAG.

Would the organism be affected? Explain your answer.

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13.

Another mutation occurs in the previous strand of DNA and CAT becomes CTT.

Would the organism be affected? Explain your answer.

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

What topics in this unit did you enjoy?

Which concepts did you find challenging?

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

What was your opinion of the following course elements?

Like 👍

Just Okay 👌

Didn't Like 🙈

Formative

Gizmos

Live Class

Asynchronous Lessons

Course Readings

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

What could Mrs. Winer do differently next summer in Biology to improve the class?

Thanks for your suggestions!