Answer:1. Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. Though heredity had been observed for millennia, Gregor Mendel, a scientist and Augustinian friar working in the 19th century, was the first to study genetics scientifically.
2. Over our lifetime, our DNA can undergo changes or mutations that result in differences in the DNA sequence and may affect the proteins that are made. Mutations can occur as a natural consequence of errors in DNA replication or as a result of exposure to environmental factors such as smoking, sunlight or radiation.
Explanation:
Answer:
energy
Explanation:
energy allowed organisms to do work.
<span>C) Bacterial genes are organized into operons, clusters of coregulated genes, that are regulated such that they are all turned on or off together. </span>
The correct answer answer of this question is option B. The first sentence shows that Mrs. White did not believe in the talisman's power. She compared it to 'Arabian Nights" which is a popular book with a collection of folk tales. She also wished for something impossible as shown in the second sentence.
Answer:
<em>The term that described genes for tallness is dominant.</em>
Explanation:
A dominant trait can be described as a trait which masks the effect of a recessive trait. A recessive trait can be described as a trait that gets suppressed by a dominant trait. For a dominant trait to occur an organism might have both the dominant alleles or it might be heterozygous i.e having one dominant and one recessive allele. For a recessive trait to occur both the alleles have to be recessive.