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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: DNA Structure, Replication and DNA Repair Enzymes

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1.
The antibody that is transferred across the placenta from the blood of the pregnant mother to the blood of the fetus to give it natural, passive, acquired immunity is:
IgG
IgE
IgM
IgD
2.
The motile phase (motile zygote / ookinete) in the life cycle of Plasmodium malaria is characterized by:
Haploid group N
It attacks red blood cells
It secretes malaria toxin
It is diploid (2N) and penetrates the mosquito's stomach wall and turns into an egg sac
3.
Bacterial restriction endonucleases recognize specific nucleotide sequences called recognition sites, and are characterized by:
Asymmetric repetitive sequences
Stop codons only
Lipoprotein molecules
Palindromes of 4 to 8 pairs read in the same order on both strands in 5′ direction.' to 3'
4.
In eukaryotic cells, rRNA molecules are synthesized and assembled under ribosomal subunits within:
directly into the cytoplasm
Nucleolus
Smooth endoplasmic reticulum
Golgi apparatus
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