Questions about psychology.?

Question

Please Help me

1) Which combination could NEVER produce a BROWN EYED child?
a) all of listed options could produce a brown eyed child.
b)blue eyed father, browneyed mother.
c)both parents have blue eyes.
d) brown-eyed father, blue eyed mother.
e) both parents have brown eyes.

2)A mother is a color blind and the father is NOT color blind, what is the probability of that these 2 parents could produce a colorblind son?

3) Erica is used to riding tricycle. She decided to try to ride her brother's bicycle. JEAN PIAGET would say that____ must occur in order for Erica to ride the bicylcle?
a) Assimilation
b)Accommodation
c)Transformation
d)Conservation

4)Which of the following is NOT present in the preoperational stage?
a)Ability to reverse thoughts or operations emerges.
b)Thinking is highly egocentric.
c)The child begins to think symbolically
d)Thinking is still very intuitive although becoming more abstract.

Tnx for your time to answer my questions, though not sure which one will be the best answer.

1) I was thinking of putting C as my answer, but a friend of mine have blue eyes and her husband have the same eye color but their son have BROWN EYES! so i guess A is the correct answer!

2) Mothers can be colorblind especially when the X chromosomes is inherited from his father and pass this on to her children..So i think 50% chance of the a colorblind son will occur..Is that right?

3) I was thinking of letter C, again not sure

4) A, I think this one is the answer, but kind of confused about the letter B though.

help me guys..

Answer 1

1. c, assuming blue eyes is a pure recessive trait.
2. women cannot be color blind as far as I know.
3. b
4. a

Answer 2

1)a. any answer can produce a brown eyed child, c only in the case that one of the parent's parents has brown eyes.

2) Color-blindness is more likely to occur in males than in females.

Answer 3

1 - c
2 - 100%

Those are the only two I know for sure, but I think number three is c.

Answer 4

1. a
2. 25%
3. a
4. c