So we’ll just use “R” and “r” for this example. If the mother AND father are heterozygous, then both of their genotypes are “Rr” if you work out the lumber square or use the foil method, the box would look like this: RR on top left, Rr on top right, Rr on bottom left, and rr on bottom right. So the genetic probabilities, using four as the sum would be 1:2:1
Claim: Whales evolved from land mammals to water mammals.
Evidence: The first whales evolved over 50 million years. One of the first whales, such as Pakicetus, were land animals with long skulls and carnivorous teeth, much like many adaptable land mammals back then and today.
Which of the following are parts of the cardiovascular system?
a) Blood
b) Heart
d) Blood vessels
Choose: a); b); d)
{answer}
B- they are denser than water
{ I hope this helps :)}
Answer:
The answer is a. chromosomes; proteins.
Explanation:
Genes are segments of chromosomes that code for protein synthesis. Even though in the process, genes do form amino-acids, the final target is to synthesize proteins that play several roles in the cell. Genes are packed in chromosomes so they can fit the cell, otherwise, they would be too long to do so.
