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Reproduction Unit

Stack for the Reproduction Unit Study Guide

Define reproductive success how many successful offspring an individual organism produces
Give an example of a behavior that increases reproductive success Birds knowing when an egg is not their own increases their own reproductive success
Give an example of a physical trait that increases reproductive success the longer the tail of a male Long-tailed Widowbird, the more females is has eggs with
Are animal mating behaviors affected by only genetics, only environment or a combination of the two? Both
What is the purpose of animal mating behavior? to increase the chances of reproductive sucess
List three examples of plant adaptations (physical features) that attract pollinators Smell Color Height
Are plant traits affected by genetics, environment, or both? Both
Define trait a specific characteristic that varies from one individual to another
What causes inherited diseases? Genes!
True or False: Sexual reproduction results in offspring that are genetically that are genetically identical to the parents FALSE
Define fertilization a male sperm and female egg merge to form a fertilized egg
What type of reproduction requires fertilization? Sexual`
Define sexual reproduction the process in which a sperm and egg merge to create offspring that inherits traits from both
What types of organisms reproduce sexually? Multicellular organism
How much genetic information does the offspring inherit from each parent in sexual reproduction? 50% from each
Define asexual reproduction the process in which an organism creates an identical copy w/out sex cells
What type of organisms reproduce asexually? Unicellular and some multicellular
How much genetic information is inherited by the parent in asexual reproduction? 100%
Where is the genetic information contained in the Cell? Nucleus
Organize the following from largest to smallest CHROMOSOMES CELLS GENES Cells > Chromosomes > Genes
Define mutation a change in DNA that could lead to a different trait
Write "3 out of 4" (75%) as a ratio 3:1
Define dominant one copy of an allele or gene rises to become an observable trait (always expressed)
What type of letter represents the dominant allele? Give an example Upper case (I)
Write both versions of a dominant genotype II or Ii
What type of letter represent the recessive allele? Give an example Lowercase (i)
Write a recessive genotype ii
What is a Punnett Square? a diagram that shows the possibilities of traits for an offspring
What type of reproduction is modeled using Punnett Squares? Explain Sexual Reproduction is modeled using Punnett Squares because asexual reproduction creates an organism identical to the parent no matter what, there are no possibilities
How many copies of each chromosome does a person have? 2
How many copies of a gene does a person have? 2
What did Gregor Mendel discover? The patterns of traits found during sexual reproduction
What organism did Mendel study? Pea Plants
Created by: Newtmas34