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science high key suc

QuestionAnswer
What did Gregor Mendel determine? Traits are inherited using genes.
What are genes segments of code that appear on structures called chromosomes, in a cell's nucleus, contains DNA passed from one generation to the next.
When do chromosomes get their characteristic x shape When they are made in the beginning of a series of events in which a cell grows, prepares for division, and divides into new cells
What type of cells do not have the same numbers of chromosomes Sex cells
How many chromosomes do us humans have 46
How many sex cells do we have in relation to body cells half of the body cells
What is inside a cell? nucleus
What is inside of a nucleus chromosomes
what is inside of chromosomes DNA
What is inside of DNA Genes
How many genes are in 46 chromosomes 20-25k
What is a homologous Chromosome? The pairs the chromosomes from you mom and dad come in.
What happens if somebody receives a dominate trait and a recessive trait? The individual would be heterozygous for that trait.
What is a pedigree a model that geneticists use to map out the inheritance of traits, the diagram shows the presence or absence of traits across several generations.
What are multiple generations represented as in a pedigree roman numerals
Why do human body cells have twice as many chromosomes as sex cells? When a sperm and an egg meet, both having 23 chromosomes, they form a zygote with 46 chromosomes.
How do sex cells form? They form through a process that reduces their chromosomes by half. Homologous chromosomes separate into two different cells and form new cells with half as many chromosomes as the parent cell.
What happens before Homologous chromosomes separate into two different cells, They separate and move into separate cells, this is called crossing over
Created by: Voxisthebest
 

 



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