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SB2 abc

Authored by Angela Ugbajah

Biology

9th Grade

NGSS covered

Used 39+ times

SB2 abc
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34 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement correctly describes how the structure of DNA facilitates replication?

A Because the DNA molecule is so large, it can remain stationary.

The hydrogen bonds between strands are weak and easily broken.

The shape of DNA molecules allows them to stack close to each other.

Because there are few nucleotides, only limited variations are possible.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Genetic engineering was a major factor in the development of which of the following?

High-strength metals

Miniature electronics

Synthetic fabrics

Disease-resistant crops

Tags

NGSS.HS-ETS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the best explanation of the process of translation?

An mRNA strand is copied from the original DNA sequence.

Amino acids are arranged in a specific order to build a protein.

A tiny fragment of DNA is moved to a different location on the chromosome.

The basic structure of DNA is changed due to a mistake or environmental factor.

Tags

NGSS.HS-LS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One product of biotechnology is genetically modified foods. Some people are concerned about these foods because–

they are usually more nutritious than naturally produced foods.

allergens from one food may be accidentally transferred to a different food.

unmodified crops usually grow more slowly than genetically modified crops.

the production of these foods increases the biodiversity of organisms on Earth.

Tags

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is one of the ethical concerns raised about cloning?

A potential life is destroyed when embryonic cells are used.

The technology required and the training needed for cloning are costly.

Cloning is a lengthy and delicate procedure that is prone to failure.

The health benefits of cloned cells interfere with the natural progress of disease.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Between the two strands of a DNA segment the nitrogen bases are held together by

covalent bonds

hydrogen bonds

metallic bonds

ionic bonds

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The DNA sequence reads ACGTTCATT before a mutation occurs. After the mutation, the DNA sequence reads ATCGTTCATT. Which type of mutation occurred?

substitution

insertion

deletion

point

Tags

NGSS.HS-LS3-2

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