Type the correct answer in the box. Use numerals instead of words. A recessive gene located on the X chromosome is the cause of one type of colorblindness (denoted by X^c). Let the genotype for normal vision be
denoted by X^+.
Suppose a mother with normal vision (X^+X^c) and a father with normal vision (X^+Y) reproduce. Their child's possible genotypes can be illustrated
with the following Punnett square.

If they have a son, his chance of having this type of colorblindness is [ Blank ] %.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy