Mendel and Heredity...i have the answers, are they right?

Question

4. A monohybrid cross is a mating that considers one pair of contrasting traits. TRUE

5. Cross-pollination assures that each variety of garden pea is true-breeding. FALSE

6.The P generation consists of the first two individuals that are crossed in a breeding experiment. TRUE

7. In Mendel's experiment in which he cross-pollinated two P generation plants that had contrasting forms of a trait, F1 generation showed both forms of the trait. TRUE

8. The F2 generation in Mendel's experiment was obtained by cross-pollinating the F1 generation. FALSE

9. The F2 generation in Mendel's experiment showed both forms of the trait in a ratio of 1:1. FALSE

8. If the allele for yellow peas is Y, the allele for the contrasting trait, geen peas, is ____. I got y from the book (but i misread things alot) Smarties' answer was x....????

3. The genes for a trait are always located at a single place on a chromosome. TRUE

Thanks, I have a few more...

4. Different combinations of three alleles result in four different blood types. FALSE
5. If a horse with white hair mates with a horse with red hair, the offspring will have both red hairs and white hairs. TRUE
6. The color of hydrangea flowers is influenced by the amount of acid in the soil. TRUE

These, I couldn't figure the answer out...
6. The probability that a gamete from a plant with Tt genotype will carry a t allele is ________.
7. The probability of homozygous recessive offspring resulting from a cross between two homozygous dominant individuals is _______.
8. The probability of heterozygous offspring resulting from a cross between two heterozygous individual is _______.

Thanks, so much if anyone helped!!

thank you!..I guessed on a couple of those true/false, because I couldn't find them in the book..

Thanks so much, and I'm sure 5 is true, book..!

Answer 1

4. True
5. False
6. True
7. False
8. True
9. False
8. Y=yellow y=green
3. True

4. TRUE
5. True?
6. No idea

6. 50%
7. 0%
8. 50%

Answer 2

Hello-your number 8-"If the allele for yellow peas is Y, the allele for the contrasting trait, green peas, is ___ the answer is y.That's how it is in all traits. Capital letter for dominant and a lowercase letter for recessive.

Also on the ones that you couldnt' find--your number 8(chance of a homozygous reccesive individual would result from 2 homozygous dominants) There is a zero percent chance of this happening. just use your punnet square. 2 homozygous dominants would be a RR by RR so by crossing those you have a 100% chance of the offspring being homozygous dominant.

Hope i helped. have a nice day.