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What is the ratio of dominant traits to recessive traits in second generation plants?
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When a first generation plant self pollinates what is the ratio of dominate to recessive traits in the second generation plants?
1:3
Is a dominant trait seen in the first generation or the second generation?
Dominant traits tend to manifest whenever they are inherited. The real question is, "When do you see recessive traits?" Traits are coded in genes. We all inherit genes from both of our parents. If the dominant trait is capital Y and the recessive trait is lowercase y we can calculate the odds fairly easily. There are only four combinations that can be inherited from one pair of parents: YY, Yy, yY, and yy (this is usually visualized using a "punnet square"). Only in the case of both inherited traits being lowercase y will we see the recessive trait. Otherwise, we will usually see the dominant trait.
What is the trait that always appears in the second generation?
A recessive trait reappears in the 2nd generation. The classic example of this would be Gregor Mendel's pea plant cross. He took 2 pea plants, one short and one tall, cut out some of their reproductive parts so they couldn't self pollinate, and crossed their pollen. However, instead of getting a medium sized plant, he got 4 tall plants. This generation is the first, or F1, generation. Where did the short trait go? Did it simply disappear? Or was it being masked? To find out, he let the F1 generation self-pollinate. Surprisingly, there were 3 tall and 1 short plants in the F2 generation. Although the short trait was recessive, it reappeared in the second generation.
Is longer second toe dominant or recessive?
Yes definetly!! My dad has them so my sister and I got them off him.
When one gene expresses itself over another the former gene is said to be the DNA?
The gene that expresses itself over the other is Dominant. The former gene is recessive.
When a first generation plant self pollinates what is the ratio of the dominant to recessive traits in the second generation plants?
1:3
When a first generation plant self pollinates what is the ratio of dominate to recessive traits in the second generation plants?
1:3
Will there be a second generation for the nook?
recessive trait
Is a dominant trait seen in the first generation or the second generation?
Dominant traits tend to manifest whenever they are inherited. The real question is, "When do you see recessive traits?" Traits are coded in genes. We all inherit genes from both of our parents. If the dominant trait is capital Y and the recessive trait is lowercase y we can calculate the odds fairly easily. There are only four combinations that can be inherited from one pair of parents: YY, Yy, yY, and yy (this is usually visualized using a "punnet square"). Only in the case of both inherited traits being lowercase y will we see the recessive trait. Otherwise, we will usually see the dominant trait.
How are autosomal traits related to Mendel's observations of heredity?
Gregor Mendel grew hundreds of pea plants. He was curious as to why some of the plants had different traits. Some plants were tall and others were short. Some plants produced green seeds while others produced yellow seeds.Mendel observed that most of the pea plants' traits were similar to its parents. In this observation, Mendel discovered heredity. Heredity is the passing of traits from parents to offspring.Mendel started his experiments with purebred plants, a plant that always produces offspring with the same form of a trait as a parent. Purebred pea plants self-pollinate (pollinate by themselves.) The pistil produces female egg cells. And the stamens produce pollen that contains male sex cells.Next, Mendel cross-pollinated the plants. He took the pollen from a short plant and applied it to a tall plant. He called this generation the parental generation or the P generation. The offspring of this generation was called the first filial generation. The offspring of this first filial generation were all tall. Mendel was curious as to why the tall plant gene over powered the short plant gene. It was because in pea plants tall genes are the dominant allele while short genes are the recessive allele.When the pea plants from the first filial generation were pollinated, three-fourths of the offspring (called the second filial generation) were tall and one-fourth was short. It showed Mendel that recessive alleles can reappear in the next generation of plants.Some Key AbbreviationsT = dominant allelet = recessive alleleTT = (purebred) a plant that inherited two dominant allelesTt = (hybrid) a plant that inherited one dominant allele and one recessive allelett = (purebred) a plant that inherited two recessive alleles
What is the trait that always appears in the second generation?
A recessive trait reappears in the 2nd generation. The classic example of this would be Gregor Mendel's pea plant cross. He took 2 pea plants, one short and one tall, cut out some of their reproductive parts so they couldn't self pollinate, and crossed their pollen. However, instead of getting a medium sized plant, he got 4 tall plants. This generation is the first, or F1, generation. Where did the short trait go? Did it simply disappear? Or was it being masked? To find out, he let the F1 generation self-pollinate. Surprisingly, there were 3 tall and 1 short plants in the F2 generation. Although the short trait was recessive, it reappeared in the second generation.
Is longer second toe dominant or recessive?
Yes definetly!! My dad has them so my sister and I got them off him.
When one gene expresses itself over another the former gene is said to be the DNA?
The gene that expresses itself over the other is Dominant. The former gene is recessive.
Hybrid organisms prodused from a cross between two pure-breeding organisms belong to which generation is F1?
Hybrids from a cross of parental (P) generation, of homozygous parents (one is homozygous recessive, the second one is homozygous dominant) do belong to F1 generation, yes. Their genotype is heterozygous.
What did Mendel learn from his crosses?
Gregor Mendel experimented with the common garden pea and kept careful records of his crossing of plants with differing characteristics and their offspring. By these observations, he discovered recessive and dominant genes and most importantly, the independent assortment of genes. Prior to his work, it was thought that genes from the mother plant "blended" with genes from the father plant and he showed that they worked independently, so that recessive genes "hid" in the second generation, but re-emerged in the next generation.
What is The general term for an allele that masks the presence of another allele in the phenotype?
An allele whose characteristic phenotype is masked by the presence of a second allele is called recessive when used in reference to that second allele.
What is a trait that reappears in the second after disappearing in the first generation?
A recessive trait reappears in the 2nd generation. The classic example of this would be Gregor Mendel's pea plant cross. He took 2 pea plants, one short and one tall, cut out some of their reproductive parts so they couldn't self pollinate, and crossed their pollen. However, instead of getting a medium sized plant, he got 4 tall plants. This generation is the first, or F1, generation. Where did the short trait go? Did it simply disappear? Or was it being masked? To find out, he let the F1 generation self-pollinate. Surprisingly, there were 3 tall and 1 short plants in the F2 generation. Although the short trait was recessive, it reappeared in the second generation.
