Answer:
c.0
Explanation:
Given, that apart from woman's paternal uncle and man's brother there are no more haemophilia cases and carriers in pedigree. This means that the woman's parents are not carrying the haemophilia allele and hence she will be non haemophiliac and non carrier. The man's parents are also not carrying the allele hence he will be non haemophiliac. Both man and woman are not carrying any allele for haemophilia so when they have children the probability of having haemophiliac children will be 0.
Hence, the probability of their first child having haemophilia will be 0.
uhmm...
I was expecting a multiple choice
Answer:
A more dense material will cause the light to bend more. (dense substances have a higher refractive index)
A less dense material will cause the light to bend less.
The speed of light decreases with more dense materials (the denser the material, the more slowly light travels through it.)
The speed of light increases with less dense materials.
Explanation:
The right answer is blastocyst.
The blastocystic Stage of embryo development is characterized by the formation in the center of the morula (embryonic cell group) of a cavity isolated from the external environment: the blastocoele.
In embryonic development, this step precedes gastrulation.
Blastocysts are indeed composed of a hundred cells; they have the shape of a hollow sphere at the bottom of which is the mound of the "embryonic bud" from which the embryonic stem cells are derived.
