Answer:
Genotype ratio = 1 X^hX : 1 XX : 1 X^hY : 1 XY
Phenotype ratio = 2 normal daughters : 1 affected son : 1 normal son
Explanation:
Given that the father of the woman has hemophilia, the father must have transferred the allele for hemophilia (let us assume "h") to her. This makes the woman carrier for the disease (genotype = X^hX). The genotype of the normal man would be "XY".
A cross between carrier woman and normal man would obtain 2 normal daughters, 1 affected son and 1 normal son.
Genotype ratio = 1 X^hX : 1 XX : 1 X^hY : 1 XY
Phenotype ratio = 2 normal daughters : 1 affected son : 1 normal son
Answer:
D.
Explanation:
Mitosis three main functions are growth and repair of cells, and asexual reproduction for the single celled organisms.
The daughter cells have same chromosomes/genetics.
Example: repair and growth of skin, red blood cells etc.
The correct answer is: Layer 1, layer 2, and layer 4 in all three regions.
The index fossils are fossils that are commonly used for identifying a geological period of time, and these fossils are also very wide spread, as well as having a rapid evolutionary trends.
By this picture, we can easily see that even though we have rock strata from different regions, the same layers contain the same fossil, and it is a fossil that also is rapidly evolving so has a minor change in each layer.
An autotroph is an organism that can create nutritional organic substances from inorganic substances
