About half of a body’s weight is muscle. Muscle tissue is of three distinct types: skeletal, cardiac, and smooth. Each type has a unique structure and a specific role. Skeletal muscle<span> moves bones. </span>Cardiac muscle<span> contracts the heart to pump blood. The </span>smooth muscle<span> tissue that changes shape to facilitate bodily functions of intestine and bladder. Here are more details about the structure and function of each type of muscle tissue in the human muscular system. </span>
Answer:
Phenotype
Explanation:
It's phenotype because a genotype is not a physical trait; a genotype means genes. It's phenotype because it a physical trait you can see. Lets say twins look the same on the outside but on the inside they have completely DNA. This is like how some butterflies look the same with orange wings but one might have a mutation in its genes.
Answer:
50%
Explanation:
Let the allele for red-green color blindness be represented by c.
Normal vision woman whose father is color-blind will be 
Color-blind male will be 
x
Progeny: 
(See the attached image)
<em>Out of the 2 male progeny, 1 is affected for color-blindness while the other is not affected. This gives a 50% probability that a son of the couple will be color-blind.</em>
Answer:
True
Explanation:
Transgenic animals are lines of animals produced by inserting copies of a specific gene or genes into a fertilized egg or early embryo.
