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BIOS 103 Exam 3 NIU Questions And Answers
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The scientist (scientists) that confirmed DNA was the genetic information by working with bacteria that infect viruses is (are): ~ Hershey and Chase Rosalind Franklin ~ Used X-ray diffraction to discover the double-helical structure of DNA. Genotype vs. Phenotype ~ By genetic, within m...

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  • August 7, 2024
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  • 2024/2025
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BIOS 103 Exam 3 NIU
Questions And Answers

Definition of sister chromatids


✓~ identical copies of the same chromosome




True Breeding


✓~ all the offspring were the same and exactly like the parent plants




Law of independence


✓~ the members of one pair of factors separate independently of those of another pair




Law of segregation


✓~ Mendel's law that states that the pairs of homologous chromosomes separate in

meiosis so that only one chromosome from each pair is present in each gamete




Phases of mitosis

, ✓~ Prophase, Metaphase, Anaphase, Telophase, Cytokinesis




Codominance


✓~ A condition in which both alleles for a gene are fully expressed. Therefore, two

genotypes are possible for type A blood, and two genotypes are possible for type B

blood.




Incomplete dominance


✓~ A pattern of inheritance in which two alleles, inherited from the parents, are

neither dominant nor recessive. The resulting offspring have a phenotype that is a

blending of the parental traits.




Polygenic Inheritance


✓~ A group of genes that produces a specific phenotype or trait only when expressed

together; multiple genes




Sex link


✓~ only the X chromosomes

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