The nature part of this equation consists of chromosomal sex that is developed at the joining of the sperm and egg with 23 chromosomes from each parent. Next‚ sexual organs define the child at birth whether they are born with testes or ovaries‚ a penis or a vagina and identity is also dependent upon hormonal
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’We do not even in the least know the final cause of sexuality. The whole subject is hidden in darkness’; this is a quote by Charles Darwin which illustrates the fact that your sexual orientation is unknown- this suggests that homosexuality is evolved through the upbringing and personal experiences. Many Social Theorists agree with this and they argue that Nurture is the main factor when considering the reasons behind human sexuality. They also suspect that upbringing and parental and family dynamics
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MS – Endocrine System Assignment By: RLE 7.4 Siga-an‚ Patrice; Silva‚ Pauline; Simbulan‚ Paul; Simon‚ Chersea; Sison‚ Heidilene; Sitjar‚ Desiree; Sol Cruz‚ Lezrahmae; Songco‚ Francis; Soriano‚ Christian; Soriano‚ Joyce; Lim‚ Monica GLAND HORMONE HYPER HYPO PITUITARY Posterior Oxytocin Active uterine contractions Bleeding during labor Strong contractions Increased milk secretion Weak or uncoordinated contraction during labor Postpartum hemorrhage Uterine atony Fatigue Decreased milk secretion
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Write an essay on the structure and replication of retroviruses. A retrovirus is a virus that has its genes encoded in RNA instead of them being encoded in DNA (it is also known as the RNA virus). Because of this‚ a retrovirus has to have its genes reverse transcribed into DNA before replication. This is carried out by an enzyme called reverse transcriptase. The retro virus upon infecting the host with its DNA can use the host cell’s machinery to replicate. The host cell cannot tell the retrovirus’s
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These benefits include‚ very efficient transfer of a small region‚ an excellent source of DNA for the chromosomal region carried by the phage‚ and since every phage carries the same DNA it can often be used to select for deletions of some of the chromosomal genes carried on the phage. Another benefit of changing bacteria’s DNA is that you can change it in the lab and as a result; ”Bacteria are commonly used as host cells for making
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Amniocentesis essay Amniocentesis referred as amniotic fluid test (AFT)‚ is a medical processes used for pregnancy moreover in the early it used for diagnosis chromosomal and other fetal problems such as; Down syndrome‚ Trisomy 13/18‚ Fragile X‚ Rare-inherited metabolic disorders‚ Neural tube defects by alpha-fetoprotein levels. This technique is used full but more ever there are lots of risk however later on this technique get developing‚ it also can uses to detect problems such as; Infection
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Essay 1. Gender discrimination in our society 2. The cost of energy crisis in Pakistan 3. Literacy is the only panacea for the ills of Pakistan 4. Media: A double aged weapon 5. Pakistan: An administrative malice 6. Islam in the civilization perspective 7. Climate change: A fact or fiction? 8. Unbridled liberty is no liberty: Limits of freedom of expression 9. Judicial activism and judicial restraint in Pakistan 10. Beggars cannot be choosers 11. Modernisation vs Westernisation 12.
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Ch. 12 Review- pg. 315 1-23 Answers 1. The process by which one strain of bacteria is apparently changed into another strain is called. c. Transformation 2. Bacteriophages are d. viruses 3. A nucleotide does NOT contain b. polymerase (enzyme use for adding more nucleotides) 4. In prokaryotes‚ DNA molecules are located in the c. cytoplasm (no nucleus) 5. The diagram below shows the process of DNA a. Replication 6. The main enzyme involved in linking individual nucleotides
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Mutagens may be of physical‚ chemical or biological origin. They may act directly on the DNA‚ causing direct damage to the DNA‚ and most often result in replication error. Some however may act on the replication mechanism and chromosomal partition. Many mutagens are not mutagenic by themselves‚ but can form mutagenic metabolites through cellular processes. Such mutagens are called promutagens. [edit]Physical mutagens Ionizing radiations such as X-rays‚ gamma rays and alpha particles may cause DNA
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chromosomes are arranged from largest to smallest in pairs. Each pair is arranged based upon chromosome morphology‚ decreasing size‚ and autosome and sex chromosome distinguishes. Karyotyping is a useful tool used in evaluating genetic problems such as chromosomal alternations. The test identifies and examines chromosomes in a sample of cells‚ by isolating them from an individual. In culture‚ cells divide asynchronously. Cell division of these cells is halted in metaphase because they provide the best image
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