cross showing independent assortment is expected to be A) 1:2:1. B) 3:1. C) 9:1:1:3. D) 3:9:9:1. E) 9:3:3:1. 5) Mendel’s law of independent assortment states that A) chromosomes sort independently of each other during mitosis and meiosis. B) genes sort independently of each other in animals but not in plants. C) independent sorting of genes produces polyploid plants under some circumstances. D) each pair of alleles segregates independently of the other pairs of alleles during
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DOLP- Fungi General Structure and Function: For many years‚ fungi were classified into the plantae kingdom because the two kingdoms seemed to be alike; but now‚ we know that they are all too different. In fact‚ the fungi kingdom is more closely related to the animalia kingdom. Some of the only notable similarities between the fungi and plantae kingdoms are that they are both made of eukaryotic cells‚ both immobile‚ both contain cell walls (although made of different material)‚ and both evolved
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* NCERT 1. Reproduction in Organisms INTRODUCTION Biology in essence is the story of life on earth. While individual organisms die without fail‚ species continue to live through millions of years unless threatened by natural or anthropogenic extinction. Reproduction becomes a vital process without which species cannot survive for long. Each individual leaves its progeny by asexual or sexual means. Sexual mode of reproduction enables creation of new variants‚ so that survival advantage is enhanced
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produce cones – male and female - male cones produce microsporangia (pollen sacs) that produce microspores (4) which mature into pollen grains (microgametophyte) with wings for wind dispersal - female megasporocytes within the ovule undergo meiosis early producing megaspores (4) of which three degenerate and one is functional – this one undergoes mitosis to produce the female gametophyte (megagametophyte) = egg which lies in the archegonium - Fertilization – pollen sticks to female scales
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antheridia swim to the archegonia and fertilization occurs‚ leading to the production of a diploid sporophyte. The sporophyte grows up from the archegonium. Its body comprises a long stalk topped by a capsule within which spore-producing cells undergo meiosis to form haploid spores. In ferns and their allies‚ including clubmosses and horsetails‚ the conspicuous plant observed in the field is the diploid sporophyte. The haploid spores develop in sori on the underside of the fronds and are dispersed
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investigator hope to learn from doing this investigation? -They hoped by identifying and defining the kinases‚ substrates‚ and phosphorylation sites involved in recombination and segregation that they could better understand the important factors of meiosis. 2. Define unfamiliar terms: a. What key terms need to be defined before the investigation can be understood and described? -Mcm2- protein coding gene - CDKs- multifunctional enzyme that can modify various substrates that are involved in
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openings and produce produce a fluid secretion clitoris – covered by a fold of skin ‚ the two labia minora meet at the clitoris .SPERMATOGENESIS : the process by which spermatozoa are produced from male primordial germ cells though mitosis and meiosis . it produces mature male gametes ‚ commonly called sperm but specifically known as spermatozoa . for humans ‚ entire process of spermatogenesis takes 74 days ‚ testes
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The binucleate crook cell would develop into the ascus and is called Ascus mother cells. The two nuclei in the ascus mother cell fuse to form one diploid nucleus. The cell that contains the diploid nucleus elongate. The diploid nucleus under goes meiosis ( reduction division) to give rise to four haploid nuclei. The four nuclei divide by mitosis to give rise to eight nuclei and these nuclei forms the nuclei of the eight ascospores which are contained in the ascus.
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AP bio final study Study online at quizlet.com/_6ovb5 1. 2 carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate falling statoliths trigger gravitropism 2 9. acrosomal reaction 2. a botanist discovers a plant that lacks the ability to form starch grains in root cells‚ yet the roots still grow downward. This evidence refutes the long standing hypothesis that A human red blood cell in an artery of the left arm is on its way to deliver
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Assignment biology Chapter 5 Inheritance Credit First of all‚ I would like to express gratitude to God for all His Divine Guidance. Alhamdulillah‚ Biology course work was completed with inspiration‚ grace and guidance that has given him. Peace and blessings be upon our Prophet Muhammad and on his family‚ then his companions and predecessors‚ the religious scholars and to all the servants of God who followed in their footsteps. Thank you very sincere gratitude to my parents who have educated
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