Podcast
Questions and Answers
Which statement is true regarding the inheritance of traits?
Which statement is true regarding the inheritance of traits?
- Only dominant alleles influence the phenotype.
- Each trait is inherited independently of other traits. (correct)
- All traits are inherited together.
- Recessive alleles have no effect on the phenotype.
In a genetic experiment, one allele is always stronger than the other.
In a genetic experiment, one allele is always stronger than the other.
False (B)
What is the role of pollen in plant reproduction?
What is the role of pollen in plant reproduction?
Pollen transfers to the pistil, enabling fertilization.
The genotypic composition of an organism consists of two genes, one inherited from each _____ .
The genotypic composition of an organism consists of two genes, one inherited from each _____ .
Match the following terms with their definitions:
Match the following terms with their definitions:
What trait did Mendel primarily study in pea plants?
What trait did Mendel primarily study in pea plants?
Mendel's experiments were based on the understanding of genetics and heredity during his time.
Mendel's experiments were based on the understanding of genetics and heredity during his time.
What is the significance of Mendel's Law of Independent Assortment?
What is the significance of Mendel's Law of Independent Assortment?
Mendel worked with ___ subspecies of garden peas.
Mendel worked with ___ subspecies of garden peas.
Match the following characteristics of pea plants to their descriptions:
Match the following characteristics of pea plants to their descriptions:
Flashcards
Mendel's 3rd Law
Mendel's 3rd Law
Traits are inherited independently of each other during gamete formation.
Pea Plants
Pea Plants
Organisms Mendel used for his genetic experiments.
True-breeding
True-breeding
Plants that will always produce offspring with the same trait.
Dominant/Recessive traits
Dominant/Recessive traits
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Inheritance Formula
Inheritance Formula
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Independent Assortment
Independent Assortment
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Genotype
Genotype
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Dominant allele
Dominant allele
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Recessive allele
Recessive allele
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Parental generation
Parental generation
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Study Notes
Plant Reproduction
-
Pollination:
- Self-pollination: Occurs when pollen from the anther of a flower is deposited on the stigma of the same flower.
- Cross-pollination: Transfer of pollen from the anther of a flower on one plant to the stigma of a flower on a different plant. Generally produces more vigorous offspring.
-
Fertilization
- Occurs when male and female gametes (haploid cells) meet to create a diploid zygote. This develops into an embryo encased within a seed
-
Gymnosperms
- Naked seeds (not enclosed in an ovary)
-
Angiosperms
- Flowering plants
- Seeds are enclosed in an ovary
Plant Parts
- Stamen (male):
- Anther
- Filament
- Pistil (female):
- Stigma
- Style
- Ovary
- Other parts:
- Receptacle
- Sepal
- Petal
- Leaf
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