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PLTW Biomedical Science Unit 3 (2024 / 2025) Actual Questions with Verified Answers, 100% Guarantee Pass
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PLTW Biomedical Science Unit 3 (2024 / 2025) Actual Questions with Verified Answers, 100% Guarantee Pass

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  • August 21, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • pltw
  • pltw biomedical science unit 3

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PLTW Biomedical Science Unit 3.pdf file:///C:/Users/HP/Desktop/NIW/PLTW%20Biomedical%20Scien




PLTW Biomedical Science Unit 3



1. Allele: Any of the alternative forms of a gene that may occur at a given locus.

2. Autosome: A chromosome that is not directly involved in determining sex, as opposed to

a sex chromosome

3. Chromosome: Any of the usually linear bodies in the cell nucleus that contain the genetic

material.

4. Dominant Trait: A genetic trait is considered dominant if it is expressed in a person

who has only one copy of the gene associated with the trait.

5. Gene: A discrete unit of hereditary information

6. Genetic Material: Molecules responsible for heredity and variation of organisms.

7. Genotype: All or part of the genetic constitution of an individual or group

8. Heredity: The transmission of traits from ancestor to descendant.

9. Homologous Chromosomes: Chromosomes having the same or allelic genes with genetic

loci usually arranged in the same order.

10. Karyotype: A display of the chromosome pairs of a cell arranged by size and shape.

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,PLTW Biomedical Science Unit 3.pdf file:///C:/Users/HP/Desktop/NIW/PLTW%20Biomedical%20Scien




11. Meiosis: The cellular process that results in the number of chromosomes in gamete-

producing cells being reduced to one half and that involves a reduction division in which one

of each pair of homologous chromosomes passes to each daughter cell.

12. Mitosis: A process that takes place in the nucleus of a dividing cell, involves a series of

steps, and results in the formation of two new nuclei each having the same number of

chromosomes as the parent nucleus.

13. Mutation: A rare change in the genetic material, ultimately creating genetic diversity.

14. Pedigree: A diagram of a family tree showing the occurrence of heritable char- acteristics in

parents and offspring over multiple generations.

15. Phenotype: The observable properties of an organism that are produced by the interaction

of the genotype and the environment.

16. RecessiveTrait: A condition that appears only in individuals who have received two copies

of a mutant gene, one copy from each parent.

17. Sex Chromosome: One of the pair of chromosomes responsible for determining the sex of an

individual.\

18. Amino Acids: An organic monomer which serves as a building block of proteins.

19. Anticodon: A triplet of nucleotide bases in transfer RNA that identifies the amino acid carried

and binds to a complementary codon in messenger RNA during protein synthesis at a ribosome.
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