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Science Test

What does heredity ? passing traits from offspring
What are genetics ? the study of heredity and variation in organisms
What is DNA? a double stranded helical nucleic acid molecule that codes ans stores genetic information it determines the inherited structure of cells proteins
What are chromosomes? thread like strands of DNA and protein in a cell nucleus that carry the code fr the inherited characteristics of an organism
What is a gene? a distinct unit of hereditary material found in chromosomes the region of DNA that directs the making of a specific protein thus controlling traits that are passed in offspring
What is an allele? different forms of a gene controlling a particular trait; e.g.,one allele fro height may be short while another allele may be tall
What is a dominant allele? the from of a gene that appears to dominate or mask another form of the same trait the form of the allele that is most often expressed in the phenotype
What is a recessive allele? the from of a gene that is often masked by the dominant allele and is therefore often not expressed in the phenotype
What does homologous mean? Same
What is a genotype ? the genetic makeup of an individual
What is a phenotype ? the physical traits that appear in an individual as a result of its genetic makeup
What is a punnett square ? a chart that defines either your genotype or phenotype
Who two people made the first DNA model? James Watson and Francis Crick
What always goes with Adenine (A)? Thymine (T)
What always goes with Cytosine (C)? Guanine (G)
What does RNA mean? Ribonucleic Acid
What would go with these letters? " ATGCATAGCCGTATC" in DNA TACGTATCGGCATAG
Who made the Chargaff's rules? Erwin Chargaff
Who is considered the "Father" of Genetics? Gregor Mendel
What did Mendel use to explore genetics or DNA Pea plants
Created by: kmf2223