Genetics

Mendelian inheritance, DNA, RNA, mutations, and genetic disorders.

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Genetics

QUESTION NO 01
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A dominant allele is expressed when?

Answer: At least one copy is present
Dominant traits appear in heterozygotes.
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QUESTION NO 02
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Genotype refers to?

Answer: Genetic makeup
Genotype is the allele combination; phenotype is the trait.
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QUESTION NO 03
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The shape of DNA is typically a?

Answer: Double helix
Watson–Crick model: two antiparallel strands in a double helix.
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QUESTION NO 04
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Base pairing in DNA is?

Answer: A–T and G–C
Adenine pairs with thymine; guanine with cytosine.
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QUESTION NO 05
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Translation occurs at?

Answer: Ribosomes
mRNA is decoded into protein at ribosomes.
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QUESTION NO 06
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A dominant allele is expressed when?

Answer: At least one copy is present
Dominant traits appear in heterozygotes.
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QUESTION NO 07
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Transcription produces?

Answer: RNA from a DNA template
RNA polymerase synthesizes RNA complementary to DNA.
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QUESTION NO 08
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DNA stands for?

Answer: Deoxyribonucleic acid
DNA is deoxyribonucleic acid, the hereditary material.
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QUESTION NO 09
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A gene is?

Answer: A DNA segment that codes for a product
Genes are hereditary units usually encoding RNA/protein.
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QUESTION NO 10
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Mendel's law of segregation says alleles?

Answer: Separate during gamete formation
Homologous alleles segregate into different gametes.
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