Hereditary qualities

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(Section One) What is Genetics? What decides our attributes? ... What is genetics(???)? The investigation of how qualities are gone from era to ...

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Hereditary qualities ( Part One) By Group 3 Name: Poon Wing Ching (Prudence) Tse Man Ki (Annie) Wong Chi Yin (Stanley)

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Contents Revision & Introduction What is Genetics? What decides our qualities? Synopsis Self-learning Exercises

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Revision on Reproduction True or False Q1. Dust grains are the male gametes. Genuine False

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Revision on Reproduction True or False Q2. In blooming plants, ovaries will form into seed True False

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Revision on Reproduction True or False Q3. Nursery workers once in a while utilize seeds to deliver new plants for blossoms since this strategy has favorable position of anticipating congestion as contrasted and vegetative proliferation. Genuine False

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Revision on Reproduction True or False Q4. The umbilical line is a structure for connection of the developing life to the uterine divider. Genuine False

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Right, you are right!!! Dust grains are the conveys of male gametes

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Right, you are right!!! In blooming plants, ovaries will form into organic products, while the ovules will form into seeds.

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Right, you are right!!! Counteractive action of congestion is favorable position for plant dispersal as it were. Plant specialists utilizing seeds to deliver new plants of blossom, since this strategy can create varieties which may offer ascent to blooms of better quality. Such favorable position is not found in vegetation engendering.

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Right, you are right!!! The umbilical rope associates the developing life to the placenta rather than the uterus.

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Sorry, you're off-base!!! Dust grains are the conveys of male gametes

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Sorry, you're off-base!!! In blossoming plants, ovaries will form into natural products, while the ovules will form into seeds.

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Sorry, you're off-base!!! Aversion of congestion is preference for plant dispersal as it were. Nursery workers utilizing seeds to deliver new plants of blossom, since this technique can create varieties which may offer ascent to blooms of better quality. Such favorable position is not found in vegetation proliferation .

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Sorry, you're off-base!!! The umbilical string interfaces the incipient organism to the placenta rather than the uterus.

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Introduction Can you think about who is the child of Mr. Simpson ? Do you resemble your folks? :- ) Why do we take after our folks?

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What is hereditary qualities( 遺傳學)? The investigation of how qualities are passed from era to era.

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What decides our qualities? Quality, DNA & Chromosomes Genes( 基�� ): essential unit of heredity present on chromosome Genes are short lengths of DNA on chromosome

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Gene, DNA & Chromosomes (Cont'd) decide the arrangements of amino acids Genes:(Cont'd) controls protein union Indirectly controls the presence of characters and metabolic exercises of a creature

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Gene, DNA & Chromosomes (Cont'd) DNA (Deoxyribose nucleic corrosive 去氧� �糖� �酸) hereditary material deciding body characters by controlling sorts of protein delivered

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Gene, DNA & Chromosomes (Cont'd) Chromosome( 染色體): hereditary materials found inside the core of the cell one from female parent made of protein & DNA every sort of living being has a particular no. of chromosome e.g. man:46 exist in sets in body cell the individuals from every combine of chromosome is called Homologous chromosomes one from male parent

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The part of gametes As vehicles of legacy Fusion of a male & female gametes  zygote  living being

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How gametes are framed ? by the procedure meiotic cell division The real errand of meiosis is to create haploid gametes during the time spent meiosis, traverse can happen

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Meiosis( 減數分裂) Meiotic cell division including meiosis and division of cytoplasm Quicktime Movies of Stages in meiotic cell division: First meiotic division Second meiotic division

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Significance of meiosis Halving of chromosome no.: delivering gametes which have distinctive hereditary make - up The no. of chromosome can be reestablished at preparation consider what might happen if human gametes were created by mitosis? Autonomous collection of chromosomes:

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Mitosis Vs Meiosis Questions on contrasting meiotic & mitotic cell divisions: 1. Event 2. Matching of homologous chromosomes 3. Partition of homologous chromosomes 4. Number of division 5. Number of little girl cells delivered from every parent cells 6. Kind of little girl cells 7. Chromosome number of little girl cells 8. Work

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Summary 1. Gametes are shaped by meiosis. (decrease division) 2. Meiotic cell division incorporates blending and partition of homologous chromosomes, detachment of chromatids and arrangement of four little girl cells 3. Meiotic cell division is huge in: A.) framing haploid gametes, so diploid number of chromosomes can be reestablished at treatment B.) delivering gametes which have diverse hereditary make-up

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Wrong Concepts 1. Meiosis is a sort of cell division. Meiosis includes division of core alone. This is just a sort of atomic division. Cell division incorporates cytoplasmic and atomic division. 2. Each trademark is controlled by a couple of qualities. Numerous attributes are controlled not by one of qualities, but rather by numerous qualities, e.g. stature of man.

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Self-Learning Exercise Q1: What is the name for the procedure of combination of male and female gametes? A. Gametogenesis B. Implantation C. Pregnancy D. Preparation

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Sorry, you're off-base!!! Gametogenesis: gamete generation Try once more!!!

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Sorry, you're off-base!!! Implantation: occasion amid treated egg gets to be inserted in uterine divider Try once more!!!

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Sorry, you're off-base!!! Pregnancy: having in the uterus posterity in a phase of improvement before birth Try once more!!!

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Congratulations!!! Preparation: union of male (sperm) and female (egg) gametes You have the right reply! Next

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Self-Learning Exercise Q2: How gametes are framed? A. Meiotic cell division B. Meiosis C. Mitosis D. Mitotic cell division

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Congratulations!!! Gametes are shaped by a procedure called meiotic cell division, including meiosis and division of cytoplasm Next

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Sorry, you're off-base!!! Meiosis is a sort of atomic division. Attempt once more!!!

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Sorry, you're off-base!!! Mitosis is a sort of atomic division for expanding no. of cell Try once more!!!

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Sorry, you're off-base!!! Mitotic cell division including mitosis and cytoplasm division Try once more!!!

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Self-Learning Exercise Q3: Inherited attributes are dictated by? A. DNA B. Chromosomes C. Qualities D. Proteins

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Sorry, you're off-base!!! DNA gives the hereditary data to control protein blend Try once more!!!

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Sorry, you're off-base!!! Chromosome conveys qualities Try once more!!!

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Congratulations!!! Acquired characters are dictated by qualities Go to End

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Sorry, you're off-base!!! Proteins control body attributes and metabolic exercises Try once more!!!

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Further Reading Science Learning Network Biological Science Page

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The End

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