Please I need all those questions to be answer in order of the correct answer with space please.
Due Saturday by 12:30pm
Rosalind Franklin’s Legacy
These videos explore Rosalind Franklin’s contributions to STEM and the prejudices she encountered as a woman in a male-dominated field. Franklin is a text-book example of the struggle of women in STEM. Her story can inspire students to better understand the challenges faced by women in STEM and to advocate for change for all people in STEM.
Your post should focus on how the exclusion of women from STEM fields may have and continue to hamper the progress of science by reducing the perspectives brought to scientific research. Emphasize that students should explore how improved gender and racial equality in STEM would benefit society as a whole. Students should explore how their agent of change could be applied to further benefit women in STEM and society at large.
Biology is the study of life. Life is formed in a particular way and this structural organization provides functionality for organisms to grow, develop and reproduce. DNA molecules are the source of all information and heredity that provide all form and function for organisms. Understanding the structure of DNA allows us to study the function of DNA and how it operates as the molecule of heredity and reproduction.
Watch the TWO (2) videos linked below and SUBMIT answers the following questions.
Critical Thinking Questions
Broken bones require your body to make new bones cells, identical to your other bone cells, to heal and repair the fracture. When you donate blood, your body needs time to regenerate new blood cells before you are able to donate more blood. This reproduction of somatic cells is completed in the process of mitosis and cell division. For mitosis to occur, your body needs to duplicate or replicate DNA for each cell to have the same set of instructions. Many enzymes (names typically end with -ase) contribute to DNA replication.
Read 16.2 and submit a well-organized, 250 word (minimum) essay that describes the role of the enzymes helicase, DNA polymerase III, and DNA ligase in DNA replication. Use the following terms in your essay; helicase, DNA polymerase III, DNA ligase, origin of replication, leading strand, lagging strand, and Okazaki fragments.
DNA Replication II
Whether it is a microbe, a rose, or a dolphin, any form of life gets its building and operating instructions from the molecule of life, DNA. DNA comprises the genes and chromosomes that govern the development of an individual organism. Coiled inside the nucleus of the cell, DNA stores all the information needed in reproducing that individual.
The information of life is packaged in genes, the units of heredity, distributed along the chromosomes of an organism; a human being has as many as 30,000 genes, and perhaps more. Each gene contains a coded instruction for making a single protein. The chemical code in which the information is written is stunningly simple, consisting of only four different chemical bases, or nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). But various combinations of those four bases—say, A A C G G A C T T A and so on, for thousands of “letters”—can spell out the recipes for tens of thousands of different proteins.
In manufacturing the proteins it needs, the cell uses the gene sequence as a blueprint. A different nucleic acid molecule, known as messenger RNA, makes a copy of the gene sequence and carries it outside the nucleus. The message encoded in the messenger RNA is read by structures called ribosomes, which assemble the protein out of amino acids in the cell’s cytoplasm. Each amino acid is specified by a combination of three of the chemical bases (the A, T, C, and Gs), and the amino acids are put together in a long chain to form the protein. The cell then uses the protein or sends it out of the cell to perform some job for the body.
When a cell divides, it makes a copy of its DNA instructions for the new cell. The twisted double strand structure—the double helix—unwinds and the strands separate. The nucleotides (A, T, G, and C) on each strand pair up with free nucleotides in the nucleus, creating two new strands. But only G can pair with C, and only T can pair with A. Therefore, the order of nucleotides in the original strand specifies the order in the new strand. After each of the old strands is copied in this way, there are two new double-helix molecules, each one containing one strand it inherited from the original molecule and one newly-formed strand.
Often this copying process makes errors, so that the wrong nucleotide is placed in position. The cell can correct these errors, called mutations, but some inevitably get through. How often these mutations are advantageous, neutral, or harmful to an organism depends on the genes affected and their cellular functions.
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