<span>B.
They both tried to explain evolution, but Darwin was able to support it with evidence. hope i helped</span>
Answer:
Punnet squares are basically how you can somewhat "predict" the outcome of gene pools.
Explanation:
As you can see, the capital letters (RY) are dominant alleles meaning they will be the trait that shows no matter what. the lower case letters (ry) show recessive traits and will only show if paired with another recessive gene.
Genotype is the actual makeup so the letters. (Rr, Ry, ry... etc.)
Phenotype is the trait that shows such as brown hair, blue eyes, etc.
Frequency is just how many times the gene shows up and put as a fraction or percent.
Answer:
Four great mass extinctions.
Explanation:
Phanerozoic era is a period of time that occured in over 542 millon years. It is an era in geological history that can be divided into 3 eras.
a. Paleozic era: This era occured between 542 to 251 million years ago
b. Mesozoic era: This era occured between 251 to 65 million years ago
c. Cenozoic era:This era pictures between 65 millon years ago till this present day.
There has been been four great mass extinctions over the past 500 million years that claimed 40 percent or more of these genera during the Phanerozoic era and they are:
a. Ordovician Mass Extinction
b. Devonian Mass Extinction
c. Permian Mass Extinction.
d. Cretaceous-Tertiary (or the K-T) Mass Extinction.
Answer:
B.
Explanation:
My best guess would be because it only state's that it is a gene coded from her father, not mother. So I am assuming that it is controlled by only one gene.
DNA stands for Deoxyribonucleic acid which means it is a nucleic acid. RNA stands for Ribonucleicacid. RNA produces proteins
DNA replicates and stores genetic information.
RNA converts the genetic information contained within DNA to a format used to build proteins.
I would have to say the answer is A based off the information above.
Please correct me if I'm wrong.