Podcast
Questions and Answers
A normal human egg cell contains which of the following?
A normal human egg cell contains which of the following?
- 23 autosomes
- 22 autosomes and a Y chromosome
- 22 autosomes and an X chromosome (correct)
- 46 chromosomes
An organism with two different alleles for a trait is called what?
An organism with two different alleles for a trait is called what?
- Pure
- True-breeding
- Dominant
- Hybrid (correct)
Which type of macromolecule is most important for the continuity of life?
Which type of macromolecule is most important for the continuity of life?
- Cell
- Nucleic Acids (correct)
- Acids
- Adenine
What is the primary purpose of genetically modified crops like Bt corn?
What is the primary purpose of genetically modified crops like Bt corn?
What term describes an observable characteristic of an organism?
What term describes an observable characteristic of an organism?
Which characteristic is most commonly genetically engineered into crop plants?
Which characteristic is most commonly genetically engineered into crop plants?
What is the purpose of colony screening in genetic engineering?
What is the purpose of colony screening in genetic engineering?
Two white sheep produce a black offspring, what are most likely the parent’s genotypes for color?
Two white sheep produce a black offspring, what are most likely the parent’s genotypes for color?
In a scenario where long radishes are crossed with round radishes, resulting in all oval radishes, which type of inheritance is being demonstrated?
In a scenario where long radishes are crossed with round radishes, resulting in all oval radishes, which type of inheritance is being demonstrated?
If a mother has blood type O and the father has blood type AB, what possible blood type(s) could their child inherit?
If a mother has blood type O and the father has blood type AB, what possible blood type(s) could their child inherit?
An extra finger in humans is rare but is due to a dominant gene. When one parent is normal and the other parent has an extra finger but is heterozygous for the trait, what is the probability that their first child will be normal?
An extra finger in humans is rare but is due to a dominant gene. When one parent is normal and the other parent has an extra finger but is heterozygous for the trait, what is the probability that their first child will be normal?
When crossing an organism that is homozygous recessive for a single trait with a heterozygote, what is the chance of producing an offspring with the homozygous recessive phenotype?
When crossing an organism that is homozygous recessive for a single trait with a heterozygote, what is the chance of producing an offspring with the homozygous recessive phenotype?
What type of inheritance results in a phenotype showing both traits distinctly, such as red and white patches in flowers?
What type of inheritance results in a phenotype showing both traits distinctly, such as red and white patches in flowers?
Consider a cross where two traits are involved. What is the term for when the resulting phenotype is a blend of both traits?
Consider a cross where two traits are involved. What is the term for when the resulting phenotype is a blend of both traits?
In the process of genetic engineering, which step involves the use of enzymes to precisely cut DNA at specific locations?
In the process of genetic engineering, which step involves the use of enzymes to precisely cut DNA at specific locations?
The F1 offspring of the cross AA x aa, assuming complete dominance, will produce an F2 generation that displays which phenotypic ratio?
The F1 offspring of the cross AA x aa, assuming complete dominance, will produce an F2 generation that displays which phenotypic ratio?
Which of the following is an example of a purine deoxyribonucleotide found in DNA?
Which of the following is an example of a purine deoxyribonucleotide found in DNA?
Which of the following is NOT typically an application of recombinant DNA technology?
Which of the following is NOT typically an application of recombinant DNA technology?
In a cross between two heterozygous pea plants (Tt x Tt), what is the probability of producing a homozygous dominant offspring (TT)?
In a cross between two heterozygous pea plants (Tt x Tt), what is the probability of producing a homozygous dominant offspring (TT)?
A gene for corn has two alleles, one for yellow kernels and one for white kernels. Cross pollination of yellow corn and white corn results in ears of corn that have an approximately even mix of yellow and white kernels.Which term best describes the relationship between the two alleles?
A gene for corn has two alleles, one for yellow kernels and one for white kernels. Cross pollination of yellow corn and white corn results in ears of corn that have an approximately even mix of yellow and white kernels.Which term best describes the relationship between the two alleles?
What is the process of transferring a recombinant plasmid into a host cell called?
What is the process of transferring a recombinant plasmid into a host cell called?
Which blood type would not be possible for children of a type AB mother and a type A father?
Which blood type would not be possible for children of a type AB mother and a type A father?
What does Law of Segregation mean?
What does Law of Segregation mean?
Flashcards
Normal human egg chromosome count
Normal human egg chromosome count
22 autosomes and an X chromosome.
Hybrid
Hybrid
An organism with two different alleles for a trait.
Nucleic Acids
Nucleic Acids
Macromolecules such as DNA and RNA that carry genetic information.
Purpose of Bt Corn
Purpose of Bt Corn
Signup and view all the flashcards
Phenotype
Phenotype
Signup and view all the flashcards
Genetically engineered trait in crops
Genetically engineered trait in crops
Signup and view all the flashcards
Colony screening in genetic engineering
Colony screening in genetic engineering
Signup and view all the flashcards
Recessive genes
Recessive genes
Signup and view all the flashcards
What is DNA?
What is DNA?
Signup and view all the flashcards
Incomplete Dominance
Incomplete Dominance
Signup and view all the flashcards
Law of Dominance
Law of Dominance
Signup and view all the flashcards
Codominance
Codominance
Signup and view all the flashcards
Homozygous
Homozygous
Signup and view all the flashcards
Codominance Example
Codominance Example
Signup and view all the flashcards
First step in genetic engineering
First step in genetic engineering
Signup and view all the flashcards
Recombinant DNA technology
Recombinant DNA technology
Signup and view all the flashcards
Nucleotide
Nucleotide
Signup and view all the flashcards
DNA backbone
DNA backbone
Signup and view all the flashcards
Restriction Enzymes
Restriction Enzymes
Signup and view all the flashcards
Transformation (genetics)
Transformation (genetics)
Signup and view all the flashcards
Recessive Allele
Recessive Allele
Signup and view all the flashcards
Alleles
Alleles
Signup and view all the flashcards
Law of Segregation
Law of Segregation
Signup and view all the flashcards
Study Notes
- Normal human eggs contain 22 autosomes and an X chromosome.
- An organism with two different alleles for a trait is called a hybrid.
- Nucleic acids are the most important macromolecules for the continuity of life.
- Genetically modified crops like Bt Corn resist pests.
- Phenotype is an observable characteristic of an organism.
- Pest resistance is often genetically engineered into crop plants.
- Colony screening in genetic engineering identifies which cells contain the gene of interest.
- Recessive genes only have phenotypic expression if present as a homozygous genotype.
- A recessive allele is expressed only in the absence of a dominant allele.
- If two white sheep produce a black offspring, the parent’s genotypes for color must be heterozygous white.
- Scientists create transgenic organisms for purposes such as producing human drugs, increasing the human food supply, and helping plants tolerate harsh environments.
- In a monohybrid cross between a heterozygous tall plant (Tt) and a homozygous short plant (tt), the expected genotypic ratio is 1:1.
- A cross between homozygous purple-flowered and homozygous white-flowered pea plants resulting in offspring with purple flowers demonstrates dominance.
- The main function of recombinant DNA technology is to alter an organism’s genotype.
- In incomplete dominance, crossing a red (RR) and white (rr) flower results in a pink phenotype.
- The main function of nucleic acids is to carry genetic information.
- DNA stands for Deoxyribonucleic Acid.
- Long radishes crossed with round radishes resulting in all oval radishes is an example of incomplete dominance.
- The Law of Dominance states that one factor in a pair may mask the other, preventing the other from having an effect.
- If a mother has blood type O and the father has blood type AB, their child can have blood type A or B.
- If one parent is normal and the other parent has an extra finger but is heterozygous for the trait, the probability that the first child will be normal is 50%.
- When crossing an organism that is homozygous recessive for a single trait with a heterozygote, there is a 50% chance of producing an offspring with the homozygous recessive phenotype.
- An organism possessing two identical alleles for a trait is called homozygous.
- The F1 offspring of the cross AA x aa are all Aa.
- Codominance results in a phenotype showing both traits distinctly, such as red and white patches in flowers.
- When two traits are crossed and the resulting phenotype is a blend of both traits, it is called incomplete dominance.
- The first step in genetic engineering is isolating the gene of interest.
- Human insulin and human growth hormone are examples of recombinant DNA technology products.
- The F1 offspring of the cross AA x aa, assuming complete dominance, the F2 generation will show a phenotypic ratio of 3:1.
- Adenine is an example of a purine deoxyribonucleotide.
- Weather prediction is not an application of recombinant DNA technology.
- The basic building block of a DNA molecule is called a nucleotide.
- Thymine is an example of a pyrimidine deoxyribonucleotide.
- In a cross between two heterozygous pea plants (Tt x Tt), the probability of producing a homozygous dominant offspring (TT) is 25%.
- The backbone of DNA is formed by sugar and phosphate.
- Cross pollination of yellow corn and white corn resulting in ears of corn that have an approximately even mix of yellow and white kernels is codominance.
- Blood type in humans is the result of multiple alleles and is also an example of multiple allelism. Restriction enzymes in genetic engineering cut DNA at specific sequences.
- Transformation is the process of transferring a recombinant plasmid into a host cell.
- RNA is the transcript and regulator of expressed genetic information.
- The blood type of one of the children of a man who is a homozygote type A and a woman with type O will be type A.
- A recessive allele is often considered hidden or masked in the presence of a dominant allele.
- A type O blood type would not be possible for children of a type AB mother and a type A father.
- In a cross between two homozygous recessive organisms (tt x tt), the genotype of all the offspring is tt.
- Alleles are alternative forms of a gene.
- The Austrian monk conducted breeding experiments in his garden to study the inheritance patterns of peas.
- The Law of Segregation states that a pair of factors is segregated during the formation of gametes.
- TtHH is an example of a genotype.
- Human insulin is a product of recombinant DNA technology.
- Gregor Mendel is known as the Father of Modern Genetics.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
