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26 Cards in this Set
- Front
- Back
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Hydras reproduce using budding. What occurs during this process?
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A group of cells pinch off from a parent to form a new individual
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Most of the growth in your body occurs because your cells
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Divide
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In mitosis, each cell forms ______________ daughter cells.
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Two
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What happens during fertilization?
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Half the genes come from each parent
There is a fusion of male and female sex cells Traits are passed from the parent cell to the daughter cell |
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Tamika and Mariah are sisters that both have brown eyes, a dominant trait. What do we know about the sisters based on our observations?
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They have the same phenotype.
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What happens during meiosis?
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Gametes are produced with half the number of chromosomes as the parent
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What is the order of the phases of mitosis?
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Prophase, Metaphase, Anaphase, Telophase
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What is the name of the phase where the cell is not dividing?
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Interphase
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A scientist notices that all of the offspring of the yeast fungus are identical to the parent. However, the offspring of a cat all look different. What most likely cause this to occur?
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Yeast produced offspring through asexual reproduction, while the cat produced offspring through sexual reproduction.
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How does mitosis compare to meiosis?
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Mitosis produces two identical daughter cells, while meiosis produces sex cells with half the genetic information that combines to form a daughter cell.
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In the following Punnett Square, what is the percent of offspring that are heterozygous for the trait?
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50 percent
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In rabbits, the allele for long ears (E) is dominant, and the allele for short ears (e) is recessive. If a Heterozygous male (Ee) mates with a heterozygous female (Ee), what percentage of the offspring are likely to have long ears?
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75 percent
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In pea plants, the allele for regular height (D) is dominant, and the allele for dwarf-height (d) is recessive. If a homozygous dominant pea plant (DD) is crossed with a homozygous recessive pea plant (dd), what percentage of the offspring are likely to be regular height?
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100 percent
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In humans, the allele for curly hair (H) is dominant, and the allele for straight hair (h) is recessive. If a heterozygous male (Hh) mates with a homozygous recessive female (hh), what percentage of the offspring are likely to have curly hair?
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50 percent
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What did Gregor Mendel contribute to the field of genetics?
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He was an Austrian monk that identified patterns of inheritance in pea plants
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How many people in the family have the genetic disease?
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Four
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Based on the information in the chart, colorblindness is:
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Recessive
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How many females in this family are colorblind?
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None
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From the pedigree we can infer that the disease is only present in _______________.
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Males
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What was Reginald Punnett’s contribution to the field of genetics?
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He discovered some of the basic patterns of inheritance including sex-linked traits
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Sarah’s family has a long history of people who developed diabetes. Which lifestyle change should she make to try to prevent becoming diabetic?
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Exercise frequently and watch her diet
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How does smoking cigarettes affect the body?
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It causes damage to the various cells.
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Which is an example of an acquired trait?
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Ability to ride a bicycle
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What factors determine your lifespan?
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Environmental conditions (diet, sanitation, access to medical care)
Inherited Traits Personal Choices and Behavior |
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After some genetic tests, Rebecca discovers that she has the genetic marker for BRCA-1, the gene that causes breast cancer. What can Rebecca do to reduce her chances of developing breast cancer?
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Avoid cancer-causing agents such as smoking, make good lifestyle choices, and seek the advice of a medical doctor
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What is cancer?
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A genetic disorder that affects the cell cycle characterized by uncontrolled division of cells
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