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Biology & Geology

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 2 Quiz: Movement in Plants and Muscle Contraction Mechanics in Humans

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1.
The common ratio r of the geometric sequence (64, 32, 16, 8, ...) is:
r = 1/2
r = -1/2
r = 4
r = 2
2.
The sum of the first 10 terms of the geometric sequence 2, 6, 18, 54, ... equals:
118,096
29,524
59,048
19,682
3.
The 7th term of the geometric sequence (2, 6, 18, ...) is:
1458
162
486
729
4.
Hydra and planaria share the ability to reproduce asexually by:
Regeneration
Longitudinal binary fission
Budding only
Bacteria formation
5.
According to Chargaff's rules's Rules) In the DNA double helix, the equal ratio is always:
A + T = G + C always
A = G And T = C
The ratio of adenine A equals thymine T, and the ratio of guanine G equals cytosine C (A+G). = T+C)
A / T = 2
6.
The standard start codon in an mRNA molecule recognized by the first tRNA molecule carrying methionine is:
UAG
UGA
AUG
UAA
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