Biology, 02.09.2019 08:20, kaylienguyen

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a snapdragon is a type of flowering plant. in snapdragons, the allele for red flowers (r) is incompletely dominant over the allele for white flowers (r).
part a: predict the phenotype that will be expressed by a snapdragon that is heterozygous for flower color (rr).
part b: suppose two snapdragons that are heterozygous for flower color (rr) are crossed. predict the percentage of each possible phenotype that will result from this cross. in your answer, be sure to explain the reasoning behind your prediction.
part c: a gardener wants to produce a generation of snapdragons that displays only the phenotype associated with the heterozygous genotype (rr). determine the genotypes and phenotypes of the snapdragons the gardener should cross to accomplish this goal. in your answer, be sure to explain the reasoning behind your decision.

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Okay, first the clear up. The Homozygous dominate trait is RR and is Red, the Heterozygous trait is Rr and is Pink, and the Homozygous recessive trait is rr and is white.

Part A: The co-dominance or incomplete dominance mixes the colours together, so the phenotype for the Heterozygous Rr flower is pink.

Part B: This question is easiest to explain with a punnet square... so. Diagram attached.

Part C: To get only Heterozygous genotypes, the gardener must cross only White flowers with red flowers. Because both these flowers are homozygous pairs, it means that any offspring created from that group would have a mix of the two. This is clearly seen in the F1 generation of Mendel's experiments for further proof. If any other pair is chosen ie Red with red: all red offspring, white and white, all white offspring. Pink and pink, a 1:2:! ratio. Red and Pink: 1:1 ratio of red and pink. White and pink: 1:1 ratio of pink and white. Red and white: Only pink offspring.

Hope that helps, message if you need it explained.

Relatively quickly a snapdragon is a type of flowering plant. in snapdragons, the allele for red fl

Relatively quickly a snapdragon is a type of flowering plant. in snapdragons, the allele for red fl

answered: Guest

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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answered: Guest

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports the evolution of earth due to chemical weathering.

hope it !

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