Show:
Genetics
Evolution
Homozygus or Heterozygus
What's the percent?
Random!!!
100
Explain why a heritable characteristic which helps an animal to live longer will generally tend to become more common in the population as a result of evolution by natural selection.
What is, It is influenced by genes and passed from parents to baby, the offspring will sometimes adapt so it can survive, if it reproduces its' offsprings will have the characteristics and they will be passed down and eventually into the whole species.
100
What conditions are necessary for evolution by natural selection to occur?
What are Variation in characteristics, Differences in fitness & Heritability of characteristics (Adaptaion, fitness and reproduction)
100
Aunt smiley has pointed ears. What genotype must her husband have so that her children are guaranteed to have pointed ears?
What is Homozygus recessive?
100
Mr. Smiley is heterozygus for a yellow face. He marries a women with a green face (heterozygus) what percent of his children will have yellow faces?
What is 50%
100
What is a trait?
What are different versions of the characteristics
200
What does DNA stand for?
What is DeoxyriboNucleic acid
200
Suppose a characteristic helped a species to live longer, but made them sterile (cannot have children). Would natural selection occur? Why?
What is No. Because the adapted characteristics would not be passed down. No reproduction= No natural selection
200
What is sexual reproduction?
What is when sperm fertilizes an egg to produce an offspring
300
How many chromosomes does each person have?
What are 23
300
What is the theory of Evolution?
What is when species evolve because new characteristics appear in individuals and because natural selection promotes the reproduction and survival of the species best adapted to their environement.
300
What is asexual reproduction?
What is when an organism copies itself to produce
400
What are chromosomes made of?
What are cells
400
True or false: A punnett square can determine the possibilities in genotype of an offspring?
What is True
400
What is inheritance?
What is when a trait are passed down from parents to offspring
500
Where are chromosomes located?
Where is the Nucleus
500
What % of humans is different from other humans?
What is 1%
500
What is a mutation?
What is when genes make a mistake mixing and producing new or different traits in the offspring