Podcast
Questions and Answers
What is the probable genetic makeup of a brown-eyed father and a blue-eyed mother with all brown-eyed children?
What is the probable genetic makeup of a brown-eyed father and a blue-eyed mother with all brown-eyed children?
If a person has the genotype Bb, they have blue eyes.
If a person has the genotype Bb, they have blue eyes.
False
What base pairs with guanine (G) according to the base pairing rule?
What base pairs with guanine (G) according to the base pairing rule?
C (cytosine)
The DNA structure resembles a ______.
The DNA structure resembles a ______.
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How many chromosomes are in human sex cells?
How many chromosomes are in human sex cells?
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Transcription is the process of copying the DNA message.
Transcription is the process of copying the DNA message.
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What is the term for alleles that are the same, such as BB?
What is the term for alleles that are the same, such as BB?
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Match the following genetic terms with their definitions:
Match the following genetic terms with their definitions:
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What is the definition of translation in a biological context?
What is the definition of translation in a biological context?
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If dimples (D) are dominant to non-dimpled cheeks (d), what proportion of offspring with dimples can be expected if two non-dimpled individuals mate?
If dimples (D) are dominant to non-dimpled cheeks (d), what proportion of offspring with dimples can be expected if two non-dimpled individuals mate?
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Each human skin cell contains how many chromosomes?
Each human skin cell contains how many chromosomes?
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If a heterozygous straight fingered chimpanzee (Ss) mates with a homozygous bent fingered chimpanzee (ss), what percentage of straight fingered offspring can be expected?
If a heterozygous straight fingered chimpanzee (Ss) mates with a homozygous bent fingered chimpanzee (ss), what percentage of straight fingered offspring can be expected?
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The phenotype of an allele is its genetic characteristics.
The phenotype of an allele is its genetic characteristics.
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What would be the complementary DNA bases for the sequence G A T C?
What would be the complementary DNA bases for the sequence G A T C?
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In meiosis, the type of cells produced are called _____ and they have _____ chromosomes.
In meiosis, the type of cells produced are called _____ and they have _____ chromosomes.
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Match the coat colors of guinea pigs with their corresponding alleles:
Match the coat colors of guinea pigs with their corresponding alleles:
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Study Notes
Genetics Practice Exam
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Question 1: Dominant Brown Eyes
- Brown eyes are dominant to blue eyes
- A brown-eyed man (BB) marries a blue-eyed woman (bb)
- All 8 children have brown eyes (Bb)
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Question 2: Genotype to Eye Color
- If the genotype is Bb, the eye color is brown
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Question 3: Genotype to Eye Color
- If the genotype is bb, the eye color is blue
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Question 4: Nucleotide Structure
- Nucleotides have bases, phosphate, and sugar
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Question 5: Base Pairing Rule (Guanine)
- Guanine (G) pairs with cytosine (C)
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Question 6: Base Pairing Rule (Adenine)
- Adenine (A) pairs with thymine (T)
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Question 7: Alleles - Homozygous Dominant
- If two alleles are the same (e.g., BB), it's homozygous dominant
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Question 8: Alleles - Homozygous Recessive
- If two alleles are the same (e.g., bb), it's homozygous recessive
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Question 9: Base Pairing Rule
- Guanine (G) pairs with cytosine (C)
- Adenine (A) pairs with thymine (T)
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Question 11: DNA Structure
- DNA has a double helix structure
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Question 12: Chromosome Number in Gametes
- Gametes (sex cells) have 23 chromosomes
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Question 13: Sex Chromosomes for Females
- Females have XX sex chromosomes
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Question 16: Transcription
- Transcription is the process of copying DNA's message
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Question 17: Translation
- Translation is reading the genetic code to make amino acids
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Question 18: Dimpled Cheeks
- If both parents have non-dimpled cheeks (dd), 0% of offspring will have dimples.
- If both parents have dimples (DD), 100% will have dimples.
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Question 20: Chromosomes in Human Skin Cells
- Human skin cells have 46 chromosomes
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Question 22: Chimpanzee Fingers
- Heterozygous straight fingers (Ss) and a homozygous bent fingers (ss) could produce 50% straight offspring
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Question 23: Phenotype
- Phenotype refers to the observable traits
Additional Notes (Guinea Pigs)
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Black Coat vs. Brown Coat
- Black coat color is dominant to brown coat color
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Allele Symbols
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Crosses and Offspring Prediction -Punnett squares are used to predict offspring genotypes and phenotypes
- Specific ratios for the three types of crosses (i, ii, and iii) are given following the Punnett squares
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Description
Test your knowledge of basic genetics concepts through a series of questions including eye color inheritance, nucleotide structure, and base pairing rules. This practice exam covers essential topics that form the foundation of genetic understanding.
