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What did Mendel's experiments show about blending inheritance?
Blending inheritance was one hypothesis for how traits were passed from one generation to the next. The idea was that if both parents had different traits for a particular character, then the offspring would exhibit a blend of the two traits. For example, if the character in question is flower petal color, and one parent had white flowers and the other had red flowers, the hypothesis of blending inheritance would predict the offspring would have pink flowers, a blend of the two parent traits. In fact, if you cross red and white flowered plants, you do get a pink flower. However, Mendel was able to show that the inheritance of flower color was particulate, not blending, by going one step further and crossing two pink flowered parents. He found the offspring had a ratio of 1:2:1 for red:pink:white, so the granparents' traits were reappearing. This "skipping of generations" was classically Mendelian: the alleles for red and white were both contained in the pink flowers, so that when they were crossed, they were able to be seen in the offspring. In this case, consider that red flowers have the genotype RR (homozygous for R allele), white flowers have the genotype WW (homozygous for the W allele), and pink flowers have the genotype RW (heterozygous), where R and W are two different alleles for flower color. When red (RR) and white (WW) are crossed, the offspring can only get the R allele from the red parent and the W allele from the white parent, so they are all heterozygous (RW), resulting in a pink color. When two pinks are crossed (RW x RW), then each parent can give either a red allele (R) or a white allele (W) to the offspring, resulting in the following equally likely possible combinations: RW, RR, WW, and WR. Since WR and RW are the same (pink), the expected ratio of offspring is 1 RR: 2 RW: 1 WW. This is considered an example of particulate inheritance, not blending inheritance, because the alleles (particles) are being preserved throughout the generations; it is simply the combinations of alleles that give the appearance of a blending inheritance mechanism when red and white are crossed to produce pink. In classical genetics, the first cross between red (RR) and white (WW) was considered the P (parental) generation. The hybrid offspring produced (RW) were considered the first filial generation (F1). Crossing two F1's shows that the inheritance is particulate, by looking at the 1:2:1 ratio in the F2 generation (1 red: 2 pink: 1 white). Mendel was able to deduce the theory of particulate inheritance by carefully following the generations from P to F1 to F2.
Mendel saw purple flowers in the F generation but both purple and white flowers in the F How did this help him see that traits are inherited as discrete units?
Mendel's observation of the purple flowers in the F1 generation and both purple and white flowers in the F2 generation indicated that traits are inherited as discrete units called alleles. The presence of both traits in the F2 generation showed that the white flower trait was not lost and could reappear in later generations, demonstrating the concept of dominant and recessive alleles.
What is a non inherited trait?
A non-inherited trait is a characteristic that is not passed down from parents to offspring through genetic inheritance. These traits are typically acquired or developed as a result of environmental factors or personal experiences during an individual's lifetime. Examples include scars, a tan from sun exposure, or knowledge gained through education.
One example of a trait passed from a parent plant to it's offspring is?
Flower color is an example of a trait that can be passed from a parent plant to its offspring. If a plant with red flowers is crossed with another plant with red flowers, their offspring are likely to also have red flowers due to the genetic inheritance of the trait for red flower color.
When the phenotype of two alleles are blended what are they called?
The blending of the phenotype of the parents in the offspring is known as incomplete. colors of flowers can show incomplete dominance if a red flower is crossed with a white flower and their offspring are pink.
What is blending of trait?
When the phenotype (trait) is a mixture of what the different alleles code for, it is known as incomplete dominance. For example: - if B codes for black fur, and b codes for white fur - incomplete dominance would result in grey fur (a mix of black and white) for a rabbit with Bb alleles. - if R codes for red flowers, and r codes for white flowers - incomplete dominance would result in pink flowers for a plant with Rr alleles.
What did Mendel's experiments show about blending inheritance?
Blending inheritance was one hypothesis for how traits were passed from one generation to the next. The idea was that if both parents had different traits for a particular character, then the offspring would exhibit a blend of the two traits. For example, if the character in question is flower petal color, and one parent had white flowers and the other had red flowers, the hypothesis of blending inheritance would predict the offspring would have pink flowers, a blend of the two parent traits. In fact, if you cross red and white flowered plants, you do get a pink flower. However, Mendel was able to show that the inheritance of flower color was particulate, not blending, by going one step further and crossing two pink flowered parents. He found the offspring had a ratio of 1:2:1 for red:pink:white, so the granparents' traits were reappearing. This "skipping of generations" was classically Mendelian: the alleles for red and white were both contained in the pink flowers, so that when they were crossed, they were able to be seen in the offspring. In this case, consider that red flowers have the genotype RR (homozygous for R allele), white flowers have the genotype WW (homozygous for the W allele), and pink flowers have the genotype RW (heterozygous), where R and W are two different alleles for flower color. When red (RR) and white (WW) are crossed, the offspring can only get the R allele from the red parent and the W allele from the white parent, so they are all heterozygous (RW), resulting in a pink color. When two pinks are crossed (RW x RW), then each parent can give either a red allele (R) or a white allele (W) to the offspring, resulting in the following equally likely possible combinations: RW, RR, WW, and WR. Since WR and RW are the same (pink), the expected ratio of offspring is 1 RR: 2 RW: 1 WW. This is considered an example of particulate inheritance, not blending inheritance, because the alleles (particles) are being preserved throughout the generations; it is simply the combinations of alleles that give the appearance of a blending inheritance mechanism when red and white are crossed to produce pink. In classical genetics, the first cross between red (RR) and white (WW) was considered the P (parental) generation. The hybrid offspring produced (RW) were considered the first filial generation (F1). Crossing two F1's shows that the inheritance is particulate, by looking at the 1:2:1 ratio in the F2 generation (1 red: 2 pink: 1 white). Mendel was able to deduce the theory of particulate inheritance by carefully following the generations from P to F1 to F2.
What are the top Korean dramas this 2009?
boys over flowers, shining inheritance. :)
What are some examples of genetics problems involving incomplete dominance?
Some examples of genetics problems involving incomplete dominance include the inheritance of flower color in snapdragons, where red and white flowers produce pink offspring, and the inheritance of feather color in chickens, where black and white feathers produce gray offspring. In these cases, the offspring show a blending of traits from both parents rather than one trait dominating over the other.
What does a butterfly need to survive?
by eating nectar from the flowers
Do flowers come with their colors?
Yes, flower colour is an inherited genetic trait. Although some flowers may start off a specific colour and change colour as the flower matures
Did people put flowers by Mozart's tomb?
No. Mozart was buried for reasons never satisfactorily explained in a pauper's grave the location of which is not known.
If the plants has 9 purple flowers and 3 white flowers what are the factors in the parents?
The factors that may have influenced the plant having 9 purple and 3 white flowers could include the genetic makeup of the parent plants, environmental conditions such as soil quality and sunlight exposure, and any potential mutations that occurred during reproduction. It's important to note that flower color often follows Mendelian inheritance patterns, so the genetic traits inherited from the parent plants play a significant role in determining the flower colors of the offspring.
Mendel saw purple flowers in the F generation but both purple and white flowers in the F How did this help him see that traits are inherited as discrete units?
Mendel's observation of the purple flowers in the F1 generation and both purple and white flowers in the F2 generation indicated that traits are inherited as discrete units called alleles. The presence of both traits in the F2 generation showed that the white flower trait was not lost and could reappear in later generations, demonstrating the concept of dominant and recessive alleles.
What is a non inherited trait?
A non-inherited trait is a characteristic that is not passed down from parents to offspring through genetic inheritance. These traits are typically acquired or developed as a result of environmental factors or personal experiences during an individual's lifetime. Examples include scars, a tan from sun exposure, or knowledge gained through education.
One example of a trait passed from a parent plant to it's offspring is?
Flower color is an example of a trait that can be passed from a parent plant to its offspring. If a plant with red flowers is crossed with another plant with red flowers, their offspring are likely to also have red flowers due to the genetic inheritance of the trait for red flower color.
What kind of flowers would a witch use after taking over a recently deceased persons home?
There is no specific answer to this, If the witch in question has favourite flowers those may well feature prominently in the gardens of the house. If he/she inherited the house from the previous owner she may chose to put in a flower or flowers that remind her of the deceased. If he/she does not have a green thumb then flowers may not appear at all.
