contrast meiosis and mitosis 1. Meiosis A. Form of nuclear division that divides diploid cells into haploid cells i. Essential for sexual reproduction 2. Mitosis A. Used to repair and replace cells in all organisms i. Used for reproduction in asexually reproducing eukaryotes V. How does meiosis keep our chromosome number constant over several generations? 1. Meiosis regulates chromosomes by dividing until there is a set number of chromosomes. a. Mitosis begins after that VI
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Campbell’s Biology‚ 9e (Reece et al.) Chapter 31 Fungi Though fungal divisions have traditionally been based on modes of sexual reproduction‚ molecular considerations are becoming more important. Consequently‚ no emphasis has been placed on the vagaries of sexual and asexual reproduction among various fungi in this Test Bank. Instead‚ new questions assess students’ abilities to think logically about fungal morphology‚ genetics‚ and ecology. Two new sets of scenario questions deal with the biology
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(Histology) 1.1 Give at least three distinguishing features of these groups of cells. Apical meristems have the following features: (1) a “border” of cells; (2) they follow order or shape; and (3) some cells are darker (indicating that they undergo mitosis). 2.1 Identify the tissue. The tissue is a vascular cambium. 4.5 (?) Is the epidermis uniseriate or multiseriate? In the cross section of a young root of Helianthus‚ the epidermis is uniseriate. 6.1 What do you call the outgrowths of the epidermis
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engineering – selected based on genes 2) - DNA are found in nucleus (where most DNA are found)‚ mitochondria‚ chloroplast 3) - Translation requires ribosome‚ mRNA‚ tRNA (anticodon) and amino acids - DNA template‚ polymerase for transcription 4) Mitosis generates daughter cells that are identical Meiosis – homologous recombination 5) DNA coding sequence: 5` GGGCCCTTTAAA 3` DNA template: 5` TTTAAAGGGCCC 3` 6) Insertion - Additional A (shifting the reading frame of codon) 7) Kevin
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CHAPTER 6 (SECTION 6.3) Bonding Carbon- 4 bonds attached Oxygen- 2 bonds attached Hydrogen- 1 bond attached Purines vs. Pyrimidines Purines- adenine & guanine Pyrimidines- cytosine‚ thymine (DNA)‚ uracil (RNA) Pentose vs. Hexose sugars Pentose- 5 carbon atoms Hexose- 6 carbon atoms Carbohydrates Empirical Formula CH2O Hydrolysis vs. Condensation Reactions Hydrolysis- using water to break down protein into amino acids Condensation Reaction- nucleotides Enzymes- a protein
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Cell Biochemistry BOI103 Lecture 1 Introduction to the Study of Cell Course: CELL BIOCHEMISTRY (BOI 103) Type: Compulsory Total Units: 3 (3 x 1 h lecture per week) No. of Lectures: 42 Lecturers: 1. Prof. Dr. K. Sudesh Kumar Room 402‚ Block G09A PPSKH Tel: 6534367 Email: ksudesh@usm.my 2. Dr. Rashidah Abdul Rahim 3. Dr. Chew Bee Lyn Objectives: Introduction to cells‚ organelles‚ molecules; structure & function relationship; working of a cell Course
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Besides‚ the F8 fraction showed effect in SCE number and mitosis absence in Jurkat cells treated with 100 µg/ml concentration‚ related with a lower RCE and reduction in viability obtained with trypan blue in the same concentration. Despite this‚ antiproliferative effect found in cloning efficiency was independent
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diploid (2n)‚ meiosis‚ fertilization. Are the products of meiosis haploid or diploid? 4. Define sexual reproduction and asexual reproduction. How do they differ in comparing genetic traits between parent and offspring? At what points are mitosis and meiosis involved? Asexual Reproduction - The generation of offspring from a single parent that occurs without the fusion of gametes (by budding‚ division of a single cell‚ or division of the entire organism into two or more parts). In most
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Ch. 51- FAP: sequence of behaviors that are usually carried through to completion. Habituation:loss of sensitivity to unimportant stimuli. Associative learning: associating one stimulus with another. Class. Conditioning: association of an irrelevant stimulus with a fixed physiological response. Cognition: animal’s ability to perceive‚ store‚ process‚ and use info. from its sensory receptors. Agonistic behavior: contest to determine which competitor gains access to a resource. Ch. 54- Nitrogen fixation:
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According to the results‚ the experimental group had a huge impact when the diluted concentration of caffeine was put in compared to the control group that contained no concentration of caffeine. The hypothesis was supported because a significant decrease of the total number of cells when caffeine solution was added to the experimental group was clearly shown. An addition of small amounts of caffeine does inhibit cell proliferation and affect cell viability during the lab experimentation one more
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