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Gr 11 Genetics

QuestionAnswer
What shape is DNA Double helix spiral
What is Chromatin Chromatin is the DNA in a nucleus that condenses to form chromosomes in mitosis
What is a Chromatid One of two halves of the replicated chromosome
What is a chromosome Condensed chromatin that is either two sister chromatids or a single one
What is sexual reproduction Sexual reproduction occurs betweeen two parents to create genetically different offspring
What is asexual reproduction Asexual reproduction occurs with one parent and creates many genetically identical offspring
What is an advantage to sexual reproduction Creates diversity in offsprings ggenetics
What is a disadvantage to sexual reproduction Only makes offspring in small numbers and much slower
What is an advantage to asexual reproduction Makes many offspring very quickly
What is a disadvantage to asexual reproduction Makes genetically identicle offspring causing no diversity
What are the phases of mitosis in order Interphase, prophase, metaphase, anaphase, telophase
What is interphase Cell before mitosis begins
What is prophase DNA begins to duplicate
What is metaphase Chromosomes align in center of cell (single file)
What is anaphase Chromosomes split in half and are pulled to opposite sides of the cell
What is telophase Two daughter cells are created and the cell has completed mitosis
What is the difference between mitosis and meiosis Mitosis happens between somatic cells and only created two daughter cells while meiosis happens between haploid cells and creates four daughter cells
What are the phases of meiosis Prophase 1, Metaphase 1, anaphase 1, Teophase 1/Prophase 2, metaphase 2, anaphase 2, telophase 2
What are examples of cells that undergo meiosis Sperm and egg cells
What are genetic differences between cells that have undergone meiosis and mitosis Cells that have undergone meiosis are all genetically different cells, cells that have undergone mitosis are genetically identicle
What happens when chromosomes cross They share dna and exchange it
What is an allele An allele is the part of a gene that determines things such as eye colour, hair colour and more
How many alleles are in a gene 2 or more
What is genotype The allele combination of the gene
What is phenotype The physical appearance that results from the genotype
What is Homozygous The genotype where both alleles are the same (HH, hh)
What is heterozygous The genotype where alleles are different (Hh)
What is cross breeding Determines genotype and phenotype of different matings
What is a monohybrid cross Cross/mating where we study the inheritance of a single trait
What is a dihybrid cross Cross/mating where we study 2 traits
What is incomplete dominance When the dominant allele doesn’t fully mask the affects of a resssive one
What is complete dominance When one allele masks the affect of the other one
What is co dominance Where two alleles of a gene are equally expressed
When two parents create an offspring (female) where does her chromosomes come from The first X chromosome comes from the mother and the second X chromosome comes from the father
When two parents create an offspring (male) where does his chromosomes come from The x comes from the mother and the y comes from the father
Are males or females heterozygous Females
Created by: UrFavSillyGoose
 

 



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