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Meiosis Guided Reading Unit 6.3 (Chapter 11.4)
Meiosis Guided Reading Unit 6.3 (Chapter 11.4)

... The diploid cells of most adult organisms contain ________________________________________________________ _________________________________________________________________________________________________________________ _______________________________________________________________________________ ...
Sexual and Asexual Reproduction
Sexual and Asexual Reproduction

... • Two parents egg (female) and sperm ...
Mitosis
Mitosis

... 17. Most plants appear green because chlorophyll does not absorb _______________ light. 18. What gas is produced as a by-product of photosynthesis? __________________. 19. Describe the light-dependent and light-independent reactions and know where they occur. The light dependent reaction uses ______ ...
Mitosis
Mitosis

... 17. Most plants appear green because chlorophyll does not absorb _______________ light. 18. What gas is produced as a by-product of photosynthesis? __________________. 19. Describe the light-dependent and light-independent reactions and know where they occur. The light dependent reaction uses ______ ...
Review Packet - Mendelian Genetics Practice Problems ANSWER
Review Packet - Mendelian Genetics Practice Problems ANSWER

... b. What is the likelihood that their first child will be a taster? 3/4 or 75% c. What is the likelihood that their fourth child will be a taster? 3/4 or 75% 2. In a certain plant species, blue flower color is dominant to white. You have a blue flowered plant and a white flowered plant. a. What do yo ...
Post-zygotic reproductive isolation in two populations of the African
Post-zygotic reproductive isolation in two populations of the African

... trials produced young, indicating that more than 98% of hybrids were sterile. However, it is possible that some hybrids would not have inherited the tandem fusion and could have produced young. Also, it may be assumed that hybrids with the tandem fusion could have produced some viable gametes, and w ...
Evolution Definitions
Evolution Definitions

... On the Galápagos Islands, Charles Darwin observed a. completely unrelated species on each of the islands. b. species exactly like those found in South America. c. somewhat similar species, with traits that suited their particular environments. d. species completely unrelated to those found in South ...
Name Date Ch 10 Meiosis and Sexual Life Cycles – Biology in
Name Date Ch 10 Meiosis and Sexual Life Cycles – Biology in

... Concept 10.3 Meiosis reduces the number of chromosome sets from diploid to haploid 11. In the following table – draw and explain what is happening in each stage of meiosis ...
Genetic drift
Genetic drift

... Different species form and . . . Prezygotic mechanisms Individuals reproduce at different times (temporal isolation). Physical incompatibilities prevent individuals from interbreeding (mechanical isolation). Individuals live in different places so they never meet up (ecological isolation). Individua ...
Evolution - VCC Library - Vancouver Community College
Evolution - VCC Library - Vancouver Community College

... of a trait in a group of organisms that gives them no advantage to their before they were old enough survival. One way it could occur is when a large portion of the population to reproduce and pass on is wiped out at random by a disaster. The characteristics in the the fat-less characteristic. organ ...
1 - Lough Neagh and Lower Bann Wetlands
1 - Lough Neagh and Lower Bann Wetlands

... following consultation with local people and various organisations and agencies operating within the area. Biodiversity includes the whole variety of life on Earth. The living world is made up of many thousands of different animals and plants. Local biodiversity is represented by all the plant and a ...
Binary Fission and Mitosis Budding
Binary Fission and Mitosis Budding

... parent organism forms a new separate individual. The new organism may live independently or attached as part of a colony. Many organisms reproduce by budding, for example; hydras and other cnidarians (small, freshwater animals), corals, flatworms, plants, and some types of yeast. In some species bud ...
The Origins of Variation
The Origins of Variation

... Holliday Junction a secondary structure formed between 4 DNA strands ...
Document
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... 7.1 Chromosomes and Phenotype • The chromosome theory of inheritance follows Mendel’s laws of segregation and independent assortment. • We give much credit to Thomas Hunt Morgan and his work with fruit flies- Drosophilia melanogaster in the early 20th century – Wild vs mutant types – Sex linked gene ...
DOC - SoulCare.ORG
DOC - SoulCare.ORG

... Dr. Sutton, a geneticist, 1903 studied grasshopper sex cells. * Grasshopper body cells have 24 chromosomes, but their sex cells have only 12 chromosomes (exactly half) * Sutton wanted to see how they were formed. * Sperm = male sex cell (12 chromosomes) * Egg = female sex cell (12 chromosomes) * So ...
1. Changes to the number of chromosomes
1. Changes to the number of chromosomes

... Polyploidy is a condition in which an individual possesses one or more sets of chromosomes in excess (extra) of the normal diploid number. In crop plants this often confers increased vigour. (Bigger crop yields due to increased seed or fruit size). If a polyploid plant has an uneven number of chromo ...
Chapter 9: Introduction to Genetics
Chapter 9: Introduction to Genetics

... 1. To his surprise, the tall/short crosses did not grow to be medium size plants. 2. This is when Mendel said there are factors that control traits called genes. a. Alleles- different forms of a gene Ex. The gene for plant height occurs in tall ...
Define inheritance as the transmission of
Define inheritance as the transmission of

...  State that meiosis results in genetic variation so the cells produced are not all genetically identical Genetics- Monohybrid inheritance  A gene may be copied and passed on to the next generation  Describe the inheritance of sex in humans (XX and XY chromosome)  Calculate and predict the result ...
Further Clarification of GENE LINKAGE When you did Gamete
Further Clarification of GENE LINKAGE When you did Gamete

... gametes formed during meiosis. These two possibilities are equally likely to form. ...
short genetics
short genetics

... passed on to descendents unchanged (Alleles on our genes) 2. For each trait, an individual inherits one such unit OR ALLELE from each parent 3. That a trait may not show up in an individual but can still be passed on to the next generation. ...
EOC Review Powerpoint
EOC Review Powerpoint

... Increasing the daughter chromosome number by 50% Increasing the daughter chromosome number by 75% ...
Speciation
Speciation

... ecological adaptation to sexual isolation between species. Our results suggest that imprinting may facilitate the evolution of sexual isolation during ecological speciation, may be especially important in cases of rapid diversification, and thus play an integral role in the generation of biodiversit ...
Mendel and Meiosis
Mendel and Meiosis

... Nondisjunction leading to polyploidy • When a gamete with an extra set of chromosomes is fertilized by a normal haploid gamete, the offspring has three sets of chromosomes and is triploid. ...
Chap. 13 Sex Linked Inheiritance_2
Chap. 13 Sex Linked Inheiritance_2

... • Sex chromosomes: – “The two chromosomes associated with an organism’s determination of male or female”. • Sex chromosomes vary according to species • Drosophila sex is based on the number of X chromosomes ...
Biol 101 Surveyof Biology Exam 6 Study Questions.
Biol 101 Surveyof Biology Exam 6 Study Questions.

... 24) Genetic drift resulting from a disaster that drastically reduces population size is called A) natural selection. B) the founder effect. C) nonrandom mating. D) gene flow. E) the bottleneck effect. 25) A population of 1,000 birds exists on a small Pacific island. Some of the birds are yellow, a c ...
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Hybrid (biology)



In biology a hybrid, also known as cross breed, is the result of mixing, through sexual reproduction, two animals or plants of different breeds, varieties, species or genera. Using genetic terminology, it may be defined as follows. Hybrid generally refers to any offspring resulting from the breeding of two genetically distinct individuals, which usually will result in a high degree of heterozygosity, though hybrid and heterozygous are not, strictly speaking, synonymous. a genetic hybrid carries two different alleles of the same gene a structural hybrid results from the fusion of gametes that have differing structure in at least one chromosome, as a result of structural abnormalities a numerical hybrid results from the fusion of gametes having different haploid numbers of chromosomes a permanent hybrid is a situation where only the heterozygous genotype occurs, because all homozygous combinations are lethal.From a taxonomic perspective, hybrid refers to: Offspring resulting from the interbreeding between two animal species or plant species. See also hybrid speciation. Hybrids between different subspecies within a species (such as between the Bengal tiger and Siberian tiger) are known as intra-specific hybrids. Hybrids between different species within the same genus (such as between lions and tigers) are sometimes known as interspecific hybrids or crosses. Hybrids between different genera (such as between sheep and goats) are known as intergeneric hybrids. Extremely rare interfamilial hybrids have been known to occur (such as the guineafowl hybrids). No interordinal (between different orders) animal hybrids are known. The third type of hybrid consists of crosses between populations, breeds or cultivars within a single species. This meaning is often used in plant and animal breeding, where hybrids are commonly produced and selected, because they have desirable characteristics not found or inconsistently present in the parent individuals or populations.↑ ↑ ↑ ↑
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