Answer:
C) behavioral isolation
Explanation:
The mechanisms of reproductive isolation that prevent the formation of a zygote by interbreeding between the individuals of two different species are called pre-zygotic isolation mechanisms. Behavioral isolation is one of such pre-zygotic isolation mechanisms. It includes the exchange of specific signals between the individuals of the same species before mating. Such specific courtship behaviors represent behavioral isolation.
Different species of fruit flies exhibit specific courtship behaviors such as fighting and display to attract the females of the same species only. These signals are not identified by females of the other species. It represents behavioral isolation.
The processes differ in two<span> fundamental. </span>Meiosis<span> has </span>two<span> rounds of genetic separation and cellular division </span>while mitosis<span> only has one of each. </span>In meiosis<span>homologous chromosomes separate leading to </span>daughter cells<span> that are not genetically identical. T</span>wo cells<span> with no net change </span>in<span> the number of chromosomes.</span>
Cells that protect the body by engulfing foreign cells or producing antibodies are D. White blood cells.
Human Genome Project or HGP was an international and collaborative program, which aimed towards complete mapping, sequencing, and research of the human genome.
<h3 /><h3>What are the primary goals of the Human Genome Project?</h3>
- Human Genome Project was a long, extensive, and collaborative research program initiated in the year 1990 and ended in 2003.
- The aim of the project was to map and sequence the human genome to understand the genetics, hereditary, and other biological studies.
- The primary goal of the HGP was to accurately sequence the 3 billion nucleotide base pairs. The second aim was to identify the genetic sequence in the DNA, which is estimated to be 20,000 to 25,000.
Thus, the primary aim of the HGP was to sequence the 20,000 to 25,000 genes that comprise the human genome.
Learn more about <u>HGP </u>here:
brainly.com/question/2395967
Answer:
DNA:
- is a single molecule that can be over 10,000,000 nucleotides long
- is usually double stranded
- includes the base thymine
- is the genome for prokaryotic organisms
RNA:
- can be translated into a protein
- is usually single stranded
- includes ribose sugar
- is a single molecule that can form a complex secondary structure
Explanation:
Deoxyribonucleic acid (DNA) is the hereditary genetic material of both prokaryotic and eukaryotic organisms, while RNA is the genetic material of many viruses. DNA is a double helix molecule composed of four types of nucleotides: a nitrogenous base (Adenine, Thymine, Cytosine and Guanine), a five-carbon sugar (i.e., deoxyribose), and a phosphate group. On the other hand, RNA is usually a single-stranded molecule whose nucleotides contain ribose sugars and Uracil bases replace Thymine bases. During translation, a type of RNA molecule referred to as messenger RNA (mRNA) is used as template to direct the synthesis of a polypeptide chain (protein). This RNA molecule can fold to form stable double-stranded RNA hairpins (i.e., secondary structures).
