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5. a trait for snapdragon flower is controlled by incomplete dominance.…

Question

  1. a trait for snapdragon flower is controlled by incomplete dominance. a red flower is crossed with a white. what percent will have pink flowers? 6. if two pink flowers are crossed, what percent of the offspring would have pink

Explanation:

Response
For the first question (red × white snapdragon, incomplete dominance):

Step1: Define alleles

Let \( R \) represent the allele for red, \( W \) for white. In incomplete dominance, \( RR \) is red, \( WW \) is white, \( RW \) is pink.

Step2: Determine parental genotypes

Red flower: \( RR \), White flower: \( WW \).

Step3: Perform cross (Punnett square)

\( R \)\( R \)
\( W \)\( RW \)\( RW \)

All offspring (\( RW \)) are pink. So 100% are pink.

For the second question (pink × pink snapdragon, incomplete dominance):

Step1: Parental genotypes

Pink flowers have genotype \( RW \) (since incomplete dominance, \( RW \) is pink).

Step2: Perform cross (Punnett square)

\( R \)\( W \)
\( W \)\( RW \) (pink)\( WW \) (white)

Step3: Calculate pink percentage

Offspring genotypes: \( RR \) (25%), \( RW \) (50%), \( WW \) (25%). So pink (\( RW \)) is 50%.

Answer:

s:

  1. For red × white: \(\boldsymbol{100\%}\)
  2. For pink × pink: \(\boldsymbol{50\%}\)