Ch 11 Sec 1& 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The scientific study of heredity is called _________. | show 🗑
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| T/F The male parts of pea flowers produce eggs. | show 🗑
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| T/F When pollen fertilizes an egg cell, a seed for a new plant is formed | show 🗑
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| show | true
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| T/F Seeds that are produced by self-pollinattion inherit their characteristics from two different plants. | show 🗑
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| What does it mean when pea plants are described as being true-breeding? | show 🗑
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| show | He cut away the male parts of a flower. Then he dusted that flower w/ pollen from a 2nd flower. The resulting seeds were crossed between the 2 plants
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| What are traits? | show 🗑
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| show | The offspring of crosses between parents with different traits
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| What are genes? | show 🗑
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| What are alleles? | show 🗑
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| Priniciple of dominance. | show 🗑
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| show | false
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| Dominant alleles in Mendel's pea plants. | show 🗑
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| show | He allowed all 7 kinds of F1 hybrid plants to produce and F2 (2nd filial) generation by self-pollination. He crossed the F1 generation with itself to produce the F2 offspring.
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| show | recessive
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| T/F Mendel assumed that a dominant allele had masked the corresponding recessive allele in the F1 generation. | show 🗑
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| show | false
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| show | false
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| T/F At some point, the allele for shortness was segregated, or separated, from the allele for tallness. | show 🗑
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| What are gametes? | show 🗑
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| The dominant allele is represented by ____. | show 🗑
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| The recessive allele is represented by ____. | show 🗑
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| The likelihood that a particular event will occur is called ________. | show 🗑
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| show | 50%
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| Why can the principles of probability be used to predict the outcomes of genetic crosses? | show 🗑
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| How do geneticists use Punnett squares? | show 🗑
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| show | homozygous
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| Organisms that have two different alleles for the same trait (Tt) | show 🗑
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| show | phenotype
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| Genetic makeup of an organism (Tt) | show 🗑
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| show | true
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| T/F Plants with the same phenotype always have the same genotype. | show 🗑
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| T/F In an F1 cross between two hybrid tall pea plants (Tt) 1/2 of the F2 plants will have 2 alleles for tallness (TT) | show 🗑
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| The F2 ratio of tall plants to short plants produced in a cross between two hybrid tall pea plants (Tt) is 3 tall plants for every 1 short plant. | show 🗑
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| T/F Mendel observed that about 3/4 of the F2 offspring showed the dominant trait. | show 🗑
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| show | true
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| In Mendel's model of segregation, what was the ratio of tall plants to short plants in the F2 generation? | show 🗑
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| show | false
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| How can you be sure of getting the expected 50:50 ratio from flipping a coin? | show 🗑
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| The ________ the number of offspring from the genetic cross, the closer the resulting offspring numbers will get to expected values. | show 🗑
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| T/F The ratios of an F1 generation are more likely to matche Mendelian predictions if the F1 generation contains hundreds or thousands of individuals. | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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