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27 Cards in this Set
- Front
- Back
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A skin cell will undergo which process?
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Mitosis
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Which step occurs during prophase in mitosis?
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Nuclear envelope disappears
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The products of meiosis from one parent cell are...?
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4 haploid cells
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Term describes an individual with two identical alleles for a particular trait?
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Homozygous
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AB blood type in humans is a result of what?
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Codominanace
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How many alleles for a sex linked gene does a male carry?
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One
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The backbone of a nucleic acid polymers is composed of what?
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Sugars and phosphates
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What are the base pairs of DNA?
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A-T
G-C |
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What are the base pairs for RNA?
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A-U
G-C |
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What does not directly participate in translation?
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DNA
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Order
mRNA, DNA, tRNA |
DNA-mRNA-tRNA
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Which tool do biologists use to cut a section of DNA from a chromosome?
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Restriction enzymes
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Why do scientists use gel electrophoresis?
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To compare DNA samples from different sources
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Evidence of evolution...?
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Amino acid sequences
Vestigial structures Development of embryos Fossils |
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example of natural selection...?
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wild cheetah
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two worms in the same class must be grouped in the same...?
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phylum
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what is NOT a chaeacteristic of animals?
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animals are not autotrophic
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Autotrophs
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abilty to make your own food
ex. is plants |
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jellyfish is an example of what type of symmetry?
what type of symmetry does a sponge have? what type of symmetry does a round worm have? |
radial symmetry
a sponge has no type of symmetry round worm has bilateral symmetry |
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a vertabrate with a chambered heart, strong hind legs, and smooth moist skin is a ...?
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frog
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animal group that is ecothermic?
define ecothermic |
reptiles
cold blooded |
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two characteristics of all mammals?
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mammroy glands and hair
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what type of fertilization do fish do?
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fish do external fertilization
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What are the three parts of a nucleotide?
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Molecule of sugar, phosphate group, and a nitrogen-containing molecule
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Name two DNA purines
name two DNA pyrimidines |
purine: adenine and guanine
Pyrimidine: cytosine and thymine |
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structure of a Purine?
structure of a pyrimidine? |
The purine bases have a double‐ring system with four nitrogens and five carbons.
Pyrimidine: The pyrimidine bases have two nitrogen’s and four carbons. |
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2. Explain the relationship between genome, DNA, genes, chromosomes, alleles
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DNA is the smallest unit say a letter, then Gene it's like word, after that Chromosome it's like a sentence, Finally the biggest unit is Genome it's like a paragraph
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