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Genetics Test Review. If the genotype for #3 is rr , then the genotype for #2 must be. RR Rr rr None of the above. A normal human has _____ autosomes and _____sex chromosomes. 48;2 44;2 23;3 22;1. A characteristic that can be passed down to offspring is called a. Meiosis Trait

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Genetics Test Review

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Genetics Test Review


If the genotype for #3 is rr, then the genotype for #2 must be

  • RR

  • Rr

  • rr

  • None of the above


A normal human has _____ autosomes and _____sex chromosomes

  • 48;2

  • 44;2

  • 23;3

  • 22;1


A characteristic that can be passed down to offspring is called a

  • Meiosis

  • Trait

  • Disease

  • Mitosis


An offspring with a genotype containing the same allele from both parents is called

  • Homozygous

  • Mongrel

  • Hybrid

  • Heterozygous


Different forms of a gene, for example, Y=yellow, y= green are called

  • Homozygous

  • Diploid

  • Chromosomes

  • Alleles


The form of the gene that is expressed fully (the stronger gene) when two different alleles are present, is called

  • Dominant

  • Recessive

  • Weaker

  • Survival of the fittest


CATCATCAT CATCCTCATThe mutation above represents a single base change and is called a ____________ mutation.

Substitution

Deletion

Insertion

Replication


An offspring with a genotype containing a different allele from both parents is called

  • Homeostasis

  • Purebred

  • Hybrid

  • Homosapien


If Red eyes are dominant over White eyes, and Pointed wings are dominant over Round wings. Which below is the correct genotype for a fly with White eyes and Pointed wings?

  • RRPP

  • rrPp

  • Rrpp

  • rRpP


A black rabbit with genotype Bb is crossed with another black rabbit with genotype Bb. The genotypes of the offspring would be

  • 1:BB, 2:Bb, 1:bb

  • 1:Black, 2:Brown, 1:white

  • 3:Bb, 1:bb

  • 3:Black, 1:white


A Red flower with genotype Rr is crossed with a white flower with genotype rr. The phenotypes of the offspring would be

  • 1:Rr, 2:rr, 1:RR

  • 1:Red, 2:White, 1:Both Red & White

  • 2:Red, 2:White

  • 2:Rr, 2:rr


The parents of these offspring have the genotypes

TT

Tt

  • Tt, Tt

  • TT, Tt

  • tt, TT

  • tT, tT

TT

Tt


A genotype of Yy would be called

  • Homozygous or Purebred

  • Heterozygous or Hybrid

  • Yellow

  • Green


DihybridPunnett squares are used to predict

  • A single trait in offspring

  • Two traits in offspring

  • Three traits in offspring

  • The number of offspring


If a male (Tt), mates with a female (Tt), what percentage of offspring will be homozygous recessive?

  • 0%

  • 25%

  • 50%

  • 75%


A father has a genotype of GGHh. The alleles for the Punnett square would be

  • GH Gh GH Gh

  • Gh GH GH gh

  • GH Gh GH GH

  • GH Gh gh Gh


Blood types are determined by a protein on the cell’s surface (A, B, or O [no protein]). If given the wrong blood type in a transfusion, a person could die. A person with blood type A could receive which blood types?

  • A or O

  • A, B or O

  • B or O

  • A or AB


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