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How much have you learned in this lesson about the patterns of inheritance?

These questions will help you prepare for the lesson quiz. Be sure to read the feedback carefully for any questions you answer incorrectly, and review those topics before leaving this lesson and taking the quiz.

You inherit the type of your ear lobes (attached ear lobes or free ear lobes) from your parents. How does this happen?

  1. The alleles that determine a parent's traditions are passed down to us.
  2. We inherit these physical characteristics based on the number of chromosomes.
  3. For each characteristic we inherit two alleles - one from each parent.
  4. We inherit characteristics from our parents due to asexual reproduction.

The gene for the type of ear lobe exists in two versions--one for attached ear lobe and one for free ear lobe. These alternate versions of one gene are called alleles. If your father has attached ear lobes, he passes down one allele for that trait, and if your mother has free ear lobes, she will pass down one allele for that trait. You inherit one allele from your father and one allele from your mother for ear lobe type.

The gene for the type of ear lobe exists in two versions--one for attached ear lobe and one for free ear lobe. These alternate versions of one gene are called alleles. If your father has attached ear lobes, he passes down one allele for that trait, and if your mother has free ear lobes, she will pass down one allele for that trait. You inherit one allele from your father and one allele from your mother for ear lobe type.

The gene for the type of ear lobe exists in two versions--one for attached ear lobe and one for free ear lobe. These alternate versions of one gene are called alleles. If your father has attached ear lobes, he passes down one allele for that trait, and if your mother has free ear lobes, she will pass down one allele for that trait. You inherit one allele from your father and one allele from your mother for ear lobe type.

The gene for the type of ear lobe exists in two versions--one for attached ear lobe and one for free ear lobe. These alternate versions of one gene are called alleles. If your father has attached ear lobes, he passes down one allele for that trait, and if your mother has free ear lobes, she will pass down one allele for that trait. You inherit one allele from your father and one allele from your mother for ear lobe type.

The symbol Tt represents the ____________ of the plant and TT represents ____________ of the plant. However, the appearance of tallness is called the __________ of the plant.

  1. homozygous genotype, homozygous genotype, progeny
  2. heterozygous phenotype, heterozygous genotype, offspring
  3. homozygous phenotype, heterozygous genotype, gametes
  4. heterozygous genotype, homozygous genotype, phenotype

Characteristics such as the height of a pea plant are determined by two versions of one gene. The two versions are called alleles. An F1 plant receives two versions of the alleles, one from each parent. If one parent passes on T, the dominant allele, and another parent passes on t, the recessive allele, then the F1 plant will end up with non-identical alleles (Tt), but it will still be tall. If it had inherited identical alleles (TT) it would be a tall plant but a homozygous one.

Characteristics such as the height of a pea plant are determined by two versions of one gene. The two versions are called alleles. An F1 plant receives two versions of the alleles, one from each parent. If one parent passes on T, the dominant allele, and another parent passes on t, the recessive allele, then the F1 plant will end up with non-identical alleles (Tt), but it will still be tall. If it had inherited identical alleles (TT) it would be a tall plant but a homozygous one.

Characteristics such as the height of a pea plant are determined by two versions of one gene. The two versions are called alleles. An F1 plant receives two versions of the alleles, one from each parent. If one parent passes on T, the dominant allele, and another parent passes on t, the recessive allele, then the F1 plant will end up with non-identical alleles (Tt), but it will still be tall. If it had inherited identical alleles (TT) it would be a tall plant but a homozygous one.

Characteristics such as the height of a pea plant are determined by two versions of one gene. The two versions are called alleles. An F1 plant receives two versions of the alleles, one from each parent. If one parent passes on T, the dominant allele, and another parent passes on t, the recessive allele, then the F1 plant will end up with non-identical alleles (Tt), but it will still be tall. If it had inherited identical alleles (TT) it would be a tall plant but a homozygous one.

Suppose Mendel cross-pollinated tall plants with short plants and then planted the resulting seeds to produce an F1 generation of plants. What would he find when he observed the F1 plants?

  1. The tall gene is dominated by short gene in pea plants.
  2. The short and tall genes are co-dominant in pea plants.
  3. The tall gene dominates the short gene in pea plants.
  4. The short gene and tall gene are both recessive in pea plants.

Mendel discovered that when he crossed tall plants with short plants, only tall plants were produced in the first generation. He determined that whatever produced the tallness was the dominant factor.

Mendel discovered that when he crossed tall plants with short plants, only tall plants were produced in the first generation. He determined that whatever produced the tallness was the dominant factor.

Mendel discovered that when he crossed tall plants with short plants, only tall plants were produced in the first generation. He determined that whatever produced the tallness was the dominant factor.

Mendel discovered that when he crossed tall plants with short plants, only tall plants were produced in the first generation. He determined that whatever produced the tallness was the dominant factor.

Supposed Mendel allowed the F1 tall plants to self-pollinate and then planted the resulting seeds to get the F2 generation. What would he observe about the four F2 plants?

  1. All pea plants were medium in size.
  2. One out of four pea plants was short.
  3. Two out of four pea plants were tall.
  4. Two out of four pea plants were short.

Though all the F1 plants were tall, not all of their offspring are tall. That's because the F2 generation contains a predictable number of plants with recessive traits. A Punnett square can be used to predict the ratio of tall to short plants.

Though all the F1 plants were tall, not all of their offspring are tall. That's because the F2 generation contains a predictable number of plants with recessive traits. A Punnett square can be used to predict the ratio of tall to short plants.

Though all the F1 plants were tall, not all of their offspring are tall. That's because the F2 generation contains a predictable number of plants with recessive traits. A Punnett square can be used to predict the ratio of tall to short plants.

Though all the F1 plants were tall, not all of their offspring are tall. That's because the F2 generation contains a predictable number of plants with recessive traits. A Punnett square can be used to predict the ratio of tall to short plants.

A pea plant contains two versions of the gene that determines its height. True breeding or homozygous tall plants have two alleles (TT), and true breeding or homozygous short plants have two short alleles (tt). When the tall plant and the short plant make gametes, the alleles separate and only one is present in each egg and sperm cell. When a tall plant and a short plant are cross pollinated, the tall plant passes a randomly selected T allele and the short plant passes a randomly selected t allele to the offspring. This results in the formation of the first generation of heterozygous tall plants (Tt). This result can be used to support which of the laws below?

  1. law of segregation
  2. law of blending
  3. law of breeding
  4. law of pollination

Traits such as tall and short are classified as dominant and recessive respectively. The law of segregation states that each offspring will receive only one allele from the tall plant and one allele from the short plant.

Traits such as tall and short are classified as dominant and recessive respectively. The law of segregation states that each offspring will receive only one allele from the tall plant and one allele from the short plant.

Traits such as tall and short are classified as dominant and recessive respectively. The law of segregation states that each offspring will receive only one allele from the tall plant and one allele from the short plant.

Traits such as tall and short are classified as dominant and recessive respectively. The law of segregation states that each offspring will receive only one allele from the tall plant and one allele from the short plant.

Use a Punnett square to calculate the likely genotypes of F1 plants if a homozygous dominant yellow seed plant (AA) is crossed with a homozygous recessive green seed plant (aa)?

  1. AA
  2. Aa
  3. aa
  4. Ab

You can use a geometrical figure of equal sides to predict the cross between the yellow and green seed alleles. The offspring belonging to the F1 generation of pea plants gets one allele from each parent, in this case one dominant A allele from the yellow seed plant and a recessive a allele from the green seed plant.

You can use a geometrical figure of equal sides to predict the cross between the yellow and green seed alleles. The offspring belonging to the F1 generation of pea plants gets one allele from each parent, in this case one dominant A allele from the yellow seed plant and a recessive a allele from the green seed plant.

You can use a geometrical figure of equal sides to predict the cross between the yellow and green seed alleles. The offspring belonging to the F1 generation of pea plants gets one allele from each parent, in this case one dominant A allele from the yellow seed plant and a recessive a allele from the green seed plant.

You can use a geometrical figure of equal sides to predict the cross between the yellow and green seed alleles. The offspring belonging to the F1 generation of pea plants gets one allele from each parent, in this case one dominant A allele from the yellow seed plant and a recessive a allele from the green seed plant.

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