NCSCOS Grade 7 Life Science - 7.L.2 Diagnostic Genetics
Quiz by GADOE
Grade 7
Science
North Carolina Standard Course of Study
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10 questions
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- Q1Which is an advantage of sexual reproduction?offspring receives its DNA from one parent and is identical to that parenoffspring grows faster than one that is produced asexually.Time and energy is used to find a mate in the populationincreased genetic diversity within the population30s7.L.2.1
- Q2What is a characteristic of offspring by ASEXUAL reproduction?Offspring are identical to parentRequires two parents for reproductionOffspring are different from parentTime and energy required for mating30s7.L.2.1
- Q3In piranha, fish with large teeth represent the dominant trait. Because the dominant trait masks the recessive trait,, we could expect about ________ of the next generation of fish to have SMALL teeth.50%75%0%25%30s7.L.2.2
- Q4In this Punnett square used to predict genetic crosses, RR represents the _________ of the organism.phenotypeappearancegenotyperecessive30s7.L.2.2
- Q5Allele A is dominant in mice and allele a is recessive. Two mice with the gene combination Aa breed and produce four offspring as shown below. Which offspring has the recessive phenotype?243130s7.L.2.2
- Q6Why does sexual reproduction result in more genetic diversity than asexual reproduction?Offspring come from identical parents.Traits from two parents are combinedOffspring grow in different environments.More organisms reproduce this way.30s7.L.2.2
- Q7What is the main purpose of a pedigree chart?to diagnose genetic disordersto map genesTo determine how a genetic trait is inherited through generationsto predict offspring ratio30s7.L.2.2
- Q8Which of these is a homozygous dominant genotype?AAAaaaAaa30s7.L.2.2
- Q9Which of these is an example of a phenotype?blue eyesbbBbB30s7.L.2.2
- Q10Which statement MOST accurately describes the influences on a person’s length of life and quality of life?Genes alone determine both the length and quality of lifeBehaviors alone determine both the length and quality of lifeNeither genes nor behaviors influence the length or quality of lifeBoth behaviors and genes influence the length and quality of life30s7.L.2.3
