Term
| What are dominant alleles? |
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Definition
an organism with a particular trait that will always have that form |
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Term
| What are recessive alleles? |
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Definition
| a particular form of a trait that will have that form only when the dominant allele for the trait is not present |
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Term
| What happens to alleles during segregation? |
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Definition
| the two alleles are segregrated from eachother so that each gamete carries only a single copy of gametes. |
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Term
| What did Mendel conclude determines biological inheritance? |
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Definition
- genes passed down from generation to generation
- the principle of dominance
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Term
| How did Mendel cross-pollinate pea plants? |
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Definition
cut off male parts of flower[image]
dusted the flower with pollen from another flower
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Term
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Definition
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Term
| What happens in cross pollination? |
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Definition
| a male sex cell in pollen from one plant fertilizes the sex cells of another plant |
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Term
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Definition
| pea plants and their offspring |
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Term
In Mendels experiment...
The original pair of plants were _____________
The offspring plants were the _____________
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Definition
- P generation
- F1 generation
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Term
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Definition
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Term
| What is the Principle of dominance? |
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Definition
| some alleles are dominated by other recessive alleles |
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Term
| Dominant alleles mask the traits produced by _________ during meiosis |
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Definition
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Term
| What do the letters in the boxes of Punnet Squares represent? |
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Definition
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Term
The principle of independent assortment states that genes for different traits can______indepenedently during the formation of gametes. |
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Definition
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Term
| A chromosome is considered a homologous chromosome when? |
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Definition
| each chromosome from the male parent has a corresponding chromosome from the female parent |
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Term
| How many chromosomes do human diploid cells contain? |
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Definition
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Term
| How many chromosomes does a human haploid cell contain? |
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Definition
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Term
| What happens during Meiosis? |
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Definition
| the number of chromosomes in a diploid cell is divided in hapf, resulting in a haploid cell with half the number of chromosomes |
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Term
What are the Phases of Meiosis? |
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Definition
Meiosis I
- Interphase I
- Prophasre I
- Metaphase I
- Anaphase I
Meiosis II
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Interphase II
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Prophase II
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Metaphase II
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Anaphase II
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Term
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Definition
a diploid cell
homologous
crossing over
form to new cells |
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Term
| Crossing over means what? |
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Definition
| homologous chromosomes exchange parts of their chromatids resulting in new combinations of alleles |
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Term
During Meiosis II
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two chromosomes ____________
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_________ seperate
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_____________are produced
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_________are produced in males (sperm)
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_________are produced in females (eggs)
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The outcome of this entire process are
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Definition
- line up in the center of each cell
- chromatids
- four daughter cells (each containing chromosomer) *haploid*
- haploid gametes
- haploid gametes
- four haploid cells
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Term
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Definition
| violate the principle of independent assortment |
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