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20 Cards in this Set
- Front
- Back
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Variations of homologous genes that result in differences in structure and function are |
alleles |
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In polygenic inheritance |
multiple alleles and genes contribute to a phenotype |
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Cystic fibrosis is a genetic disorder that results from the inheritance of tow recessive alleles. What is the chance that a child will inherit the disorder if one parent is heterozygous for this gene and one parent is cystic fibrosis? |
50% |
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Red-green color blindness is an X-linked recessive disorder. Assume that mom is a carrier and dad is color blind. What is the chance that their son will inherit red-green color blindness? |
50% |
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When a piece of chromosomes breaks off and reattached at another site on the same or another chromosomes, that is called |
translocation |
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Over time, the size of cheetah population has decreased dramatically due to catastrophes associated with their environment. Only approximately 15,000 cheetahs remain on Earth. This is an example of |
the bottleneck effect |
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Which of the following taxonomic categories is defined as group of organisms that are capable of interbreeding and producing fertile offspring? |
species |
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The blue-footed boobies are isolated from mating with other birds because the female requires a special mating dance. This is called _______ isolation. |
Behavioral |
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Peahens choose a peacock based on his tail size. This is an example of: |
Sexual selection |
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The figure above shows the skeletal structure of the forelimbs of several vertebrates. Because these structures are similar in structure and believed to have evolved from a common ancestral structure, they are said to be |
homologous |
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Each chromosome contain two identical copies of DNA called |
Sister chromatids |
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If you have a DNA sequence, AATCGGA. which would be its complementary strand? |
TTAGCCT |
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The process by which the DNA code is converted from a single gene into a complementary single stand of mRNA is |
transcription |
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How many codons are in the following sequence of nucleotides: AAAUGCUCGUAA |
4 |
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The process of initiation, elongation, and termination that occur in the production of a protein are all associated with |
replication |
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DNA is organized and arranged in the nucleus as |
chromosomes |
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During which of the following stages of the cell cycle do the chromosomes appear in the for of chromatin |
interphase |
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Which stage of mitosis is shown in the diagram and which stage comes next? |
anaphase, telophase |
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At the end of mitosis you end up with |
Two genetically identical diploid cells |
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At the end of meiosis I, which best describes the chromosome in the cells? |
The cells contain the haploid number of chromosomes. |
