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science test

  1. Name one of the three parts of the cell theory.

  • All living things are made of one or more cells

  1. What is the job of the cell membrane?

  • provides protection for a cell

  1. What is a chloroplast and where is it found?

  • chloroplast is an organelle found in mesophyll of plant leaves

  1. cross 2 genotypes with heterozygous brown eyes. Brown is dominant over blue. what percentage will be blue?

  • 25%

  1. Write the genotypes with tall being dominant to short.

  • TT, Tt, tt

  1. yellow is dominant to blue. YY___, Yy___, yy___.

  • yellow, yellow, blue

  1. how is homozygous different from heterozygous?

  • homozygous is the same, homozygous is different

  1. what is the difference in acquired traits and inherited traits?

  • acquired traits are traits that are learned and inherited traits are passed down from generations

  1. what is the difference between genotype and phenotype?

  • genotype is represented by a letter, phenotype is a physical representation

  1. what is the difference from dominant traits and a recessive trait?

  • Dominant traits cover up recessive traits, recessive traits disappear\

  1. how many parents are required in in asexual reproduction?

  • 1

  1. what does the a in asexual tell you?

  • no or without

  1. what is a disadvantage of asexual reproduction?

  • having to find a partner. 2 parents

  1. what is and advantage of sexual reproduction?

  • genetic variation

  1. do all plants reproduce asexually or sexually?

  • they reproduce both ways

  1. how many chromosomes make up most humans?

  • 46

  1. how many chromosomes come from mom?

  • 23

  1. how many chromosomes come from dad?

  • 23

  1. how will a seed make it from one place to another?

  • wind, water, and animals

  1. what environmental factors will a seed need in order to germinate and grow?

  • water and sun

  1. is an animals camouflage an environmental factor or a genetic factor?

  • genetic factor

  1. how does camouflage help the animal survive in its environment?

  • it helps the animal blend in and hide from predators

  1. what is DNA replication?

  • DNA replication is making a copy

  1. how is RNA used in transcription?

  • the process from making mRNA from DNA

  1. how is RNA used in translation?

  • the process of making protein

  1. how are proteins made?

  • all of the above

  1. what does cancer have to do with genetics?

  • uncontrollable cell division

  1. what are some common causes of cancer?

  • smoking and over exposure to UV light

  1. which type of mutation deletes base pairs from DNA strand?

  • deletion

  1. which type mutation adds base pairs?

  • insertion

  1. which type of mutation replaces C-G with A-T pair?

  • substitution

  1. what type of adaptation do guadeloupe turtles use to survive?

  • length of neck and curved shell

  1. define natural selection.

  • natural selection is when nature decides, adapt or die

  1. what type of adaptation would be the jackrabbits powerful legs?

  • structural adaptation

  1. what type of adaptation would be the jackrabbit staying still in the hottest part of the day? behavioral adaptation

  1. what type of adaptation would be the blood vessels in a jackrabbit’s ears that cool the blood?

  • functional adaptation

  1. what is mimicry?

  • animals look like the predator

  1. what is selective breeding?

  • humans choose the traits of organisms

  1. what are body parts that were inherited two or more species from a common ancestor?

  • homologous

  1. what is the study of similarities and differences among structures of living and fossil species?

  • comparative anatomy

  1. what is the study of the development of embryos from fertilization to birth called

    embryology

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Chapter 2: Cell Chemistry and Bioenergetics
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