in a cross of purple flowered heterozygous plants (pp), the letter p represents the allele for purple…

in a cross of purple flowered heterozygous plants (pp), the letter p represents the allele for purple flowers and the letter p represents the allele for white flowers.\nwhat is the probability that an offspring of this cross expresses plants with purple flower phenotypes?\na. 0\nb. $\\frac{1}{4}$\nc. $\\frac{1}{2}$\nd. $\\frac{3}{4}$

in a cross of purple flowered heterozygous plants (pp), the letter p represents the allele for purple flowers and the letter p represents the allele for white flowers.\nwhat is the probability that an offspring of this cross expresses plants with purple flower phenotypes?\na. 0\nb. $\\frac{1}{4}$\nc. $\\frac{1}{2}$\nd. $\\frac{3}{4}$

Answer

Explanation:

Step1: Create Punnett square for Pp × Pp

$P$ $p$
$P$ $PP$ $Pp$
$p$ $Pp$ $pp$

Step2: Identify purple phenotypes

Purple flowers are expressed by genotypes with at least one dominant $P$ allele: $PP$, $Pp$, $Pp$.

Step3: Calculate probability

Probability = $\frac{\text{Number of purple phenotypes}}{\text{Total number of offspring}} = \frac{3}{4}$

Answer:

D. 3/4