After doing her reading and homework, use this practice to see exactly how well you've master the info 11.1.

You are watching: Why did mendel prevent his plants from self-pollinating?

With what form of tree did Gregor Mendel command his experiments on inheritance?
AB
He provided pea plants that were true-breeding.
What is supposed by "true-breeding"?This refers to plants choose peas tht if allowed to self-pollinate wil develop off-spring similar to themselves.
How walk Mendel stop self-pollination in the pea plants he supplied in his experiments?He closely cut away the pollen-bearing masculine parts.
What go Mendel perform to cross-pollinate his pea plants?After cutting away the pollen-bearing male parts of one plant, the dusted pollen from one more plant top top the other flower. (this process = cross-pollination)
What to be the 7 traits in pea tree studied through Mendel?The form ; color ; flower place (6); plant elevation (7). Remember: shape, color, position, height.
Define "trait".It's a particular characteristic that varies from one individual to another (for example, seed color or plant height).
What is meant by the "first filial"?It describes the very first generation the offspring native a ns (parental) generation.
To what does the word "hybrid" refer?It refers to the offspring of crosses between parents with different traits.
In Mendel's experiments, what go he watch (phenotype) in the first generation offspring?The offspring had actually the character of only among the parents. The personality of the other parent did not appear!
What 2 conclusions walk Mendel do after see the F1 generation?1) biological inheritance is identified by factors passed from one generation to an additional to the following (genes) 2) principle of dominance: some alleles (the different forms the a gene) room dominant and others space recessive.
Why go Mendel develop a 2nd filial generation F2?He want to check out if the recessive alleles had disappeared completely, or whether the alleles were still existing in the F1 generation.
How did Mendel prize his questions around recessive alleles in the an initial filial generation? What was the result?He let all 7 type of F1 plants self-pollinate. He witnessed that the traits regulated by recessive alleles reappeared in about 1/4 that the F2 generation.
How did Mendel describe the phenotypes that the F2 generation?When each F1 plant flower & to produce gametes, the 2 alleles (1 because that tallness; 1 because that shortness) segregate native each various other so every gamete tote a single copy of every gene. So, every F1 plant produces 2 species of gametes (1 for tallness; 1 for shortness) bring about an F2 generation through a new combination of alleles.
What is meant by probability?It is the likelihood the a certain event will certainly happen.
How perform you calculation probability?See the example of the coin toss on pg. 267. This is important due to the fact that Mendel concluded the the ethics of probability could be provided to guess the results of hereditary crosses.
What is a Punnett square?It's a diagram showing the gene combinations the might an outcome from a genetic cross. (see example pg. 268). They're supplied to predict and compare the genetic variations that will result from a cross.
What execute the letter ina Punnett square represent?They stand for alleles.
What is the difference between homozygous and also heterozygous plants?Homozygous plants have actually 2 identical alleles for a details trait; heterozygous plants have actually 2 different alleles because that the exact same trait.
Explain the difference in between the phenotype and genotype of a plant.

See more: What Central Theme Does Robert Frost Explore In Birches '?

Phenotype describes the physical features of a plant (what is seen); genotype refers to the hereditary makeup that the plant.
What go the ration the 3:1 mean?It way 3 dominant to 1 recessive alleles.ss
Fo probabilities predict precise ratios?No; castle predict averages. (see pg. 269)
*