a. only their daughters will be colorblind.
b. their sons will be colorblind: daughters will be carriers.
c. their sons with normal vision: daughters will be carriers
d. all their children will be colorblind.
e. all their children will have normal vision.
please explain
2006-10-10 20:51:20 · 9 answers · asked by sixladies 1 in Science & Mathematics ➔ Biology
b. it is rare for a woman to be colorblind although in this case she is. When you do the punnet square the sons will have a probability of getting them and the daughters will be carriers of the gene.
2006-10-11 09:32:14 · answer #1 · answered by keepmewithyou 2 · 0⤊ 0⤋
the genes for colorblindness resides on the X chromosome, which men have only one. the answer is b sons colorblind daughters carriers.
2006-10-10 21:24:48 · answer #2 · answered by konala 3 · 0⤊ 0⤋
First things first. Females cannot be colorblind (well they can, but it's rare). Women can only be carriers. The first woman is a carrier. The first daughter could be a carrier or not, we don't know for sure. The second daughter is a carrier. Her daughter could be a carrier or not, we don't know for sure. Look in your biology textbook.
2016-03-28 04:32:45 · answer #3 · answered by Anonymous · 0⤊ 1⤋
it would be e if the man didnt get it from his parents then he would only have one gene from that and one of of parents and the woman's 2 reg dominant genes overpower the other colorblind one. this is just a guess though.
2006-10-11 04:14:43 · answer #4 · answered by anna c 2 · 0⤊ 0⤋
colour blindness is the sex linked inheritence which is associated with the X chromosome. if the gene is located on one chromosome of woman(XcX) the woman would be the carrier for it n if it is present on btoth the Chromosome (XcXc) woman will be color blind. n if a color blind woman marries with a normal man thier all the Daughters will be carrier for this disease and their all the sons will be Colour blind(XcY). hope u have got.
2006-10-10 22:58:05 · answer #5 · answered by ruchi j 1 · 0⤊ 0⤋
Women are seldom color blind, because this recessive trait is found on the Y chromosome, of which women don't have. So you gotta consider that when you answer this question.
2006-10-10 21:57:21 · answer #6 · answered by MrZ 6 · 0⤊ 1⤋
b.
It is extreamly rare for women to be colour blind they are usually only the carriers.
2006-10-10 20:53:23 · answer #7 · answered by Anonymous · 0⤊ 0⤋
b.
Do the punnett square.
2006-10-11 01:46:14 · answer #8 · answered by ursaitaliano70 7 · 0⤊ 0⤋
boys are notably color blind not girls
2006-10-10 21:00:48 · answer #9 · answered by goldengirl 4 · 0⤊ 0⤋