Question 26 of 58

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

3 0

Answer:

Step-by-step explanation:

The answer is D.

You might be interested in

You cross two true-breeding parents (one with purple flowers and one with white flowers). All of the F1 progeny (offspring) have

kogti [31]

Answer:

The correct answer is 375 purple flowers.

Step-by-step explanation:

If all the F1 generation from true-breeding parents are purple than the genotype would be heterozygous i.e., Pp and Pp. Here P indicates the dominant allele which produces purple flower and p indicates the recessive allele of white flower.

So if we will cross the F 1 generation than the genotype would be PP, Pp, Pp, pp. That means 3 out of 4 offspring would be purple because three genotypes out of four have dominant purple allele(P).

So if out of 4 flower 3 is purple than according to calculation out of 500 flower 375 offspring would be purple(3/4*500= 375). Therefore the correct answer is 375 purple flowers should be produced.

7 0

3 years ago

3) An existing track is perpendicular to y=1/2x + 2 and passes through B(7,5)

stira [4]

Answer:

2. $y=\frac{1}{2}x +3$

Step-by-step explanation:

2. The line will be parallel to the current track which means they have the same slope. To write the equation, use the slope m=1/2 and the point (2,4) in point slope form:

$y-y_1=m(x-x_1)\\y-4=\frac{1}{2}(x-2)$