Podcast
Questions and Answers
What is a recessive gene?
What is a recessive gene?
- A gene that cannot be covered up
- A gene that is always passed down from the parents to the offspring
- A gene that always expresses itself in an individual's phenotype
- A gene that can be hidden by the dominant version (correct)
What do alleles refer to?
What do alleles refer to?
- Two copies of a gene, which can be slightly different from each other (correct)
- The physical characteristics of an organism
- The protein expression in an individual
- The variations in DNA sequence
When does a recessive allele produce a recessive phenotype?
When does a recessive allele produce a recessive phenotype?
- When the individual has one copy of the dominant allele
- When the individual has no copies of the dominant allele
- When the individual has two copies of the recessive allele (correct)
- When the individual has one copy of the recessive allele
What does a dominant allele produce in individuals who have one copy of the allele?
What does a dominant allele produce in individuals who have one copy of the allele?
What is the function of genes in an organism's DNA?
What is the function of genes in an organism's DNA?
What is the function of genes in an organism's DNA?
What is the function of genes in an organism's DNA?
What does a dominant gene mean?
What does a dominant gene mean?
What do alleles refer to?
What do alleles refer to?
When does a recessive allele produce a recessive phenotype?
When does a recessive allele produce a recessive phenotype?
What is the impact of variations in protein activity or expression on an organism's traits?
What is the impact of variations in protein activity or expression on an organism's traits?
Flashcards
What is a recessive gene?
What is a recessive gene?
A gene that is masked by a dominant gene.
What are alleles?
What are alleles?
Different versions of a gene at the same locus.
When does a recessive allele produce a recessive phenotype?
When does a recessive allele produce a recessive phenotype?
When there are two copies of the recessive allele, with no dominant allele present.
What does a dominant allele produce in individuals who have one copy of the allele?
What does a dominant allele produce in individuals who have one copy of the allele?
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What is the function of genes?
What is the function of genes?
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What does dominant gene mean?
What does dominant gene mean?
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Impact of variations on traits?
Impact of variations on traits?
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Study Notes
Genes and Alleles
- A recessive gene is a type of gene that will only be expressed if an individual has two copies of the gene, one from each parent.
- Alleles refer to different forms of a gene that occupy the same position on a chromosome.
- A recessive allele produces a recessive phenotype when an individual has two copies of the allele, one from each parent.
Dominant Alleles
- A dominant allele produces a dominant phenotype in individuals who have one copy of the allele, inherited from either parent.
Gene Function
- The function of genes in an organism's DNA is to provide instructions for the development and function of an organism.
- Genes are responsible for creating proteins, which are essential for various cellular functions and processes.
Dominant Genes
- A dominant gene is a gene that will be expressed if an individual has one copy of the gene, inherited from either parent.
Impact of Variations
- Variations in protein activity or expression can have a significant impact on an organism's traits, resulting in changes to its physical characteristics, behavior, or susceptibility to diseases.
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