19.7: MENDEL'S GENETICS: REVIEW 16W: 19W3D: BIO

Mendel's experiments led to modern genetics and the use of ______.

• his methods of conducting research
• the law of independent assortment
• all of these
• the law of segregation

______ tells us that alleles separate and are passed down to the offspring.

• Both of these
• The law of independent assortment
• The law of segregation
• Neither of these

TRUE OR FALSE: A Punnett square is a chart that can be used to predict the genotypic ratio of offspring produced by a genetic cross.

• true
• false

TRUE OR FALSE: A monohybrid cross always produces a 1:2:1 ratio of genotypes of homozygous dominant, to heterozygous, to homozygous recessive traits.

• true
• false

TRUE OR FALSE: A genotype is the genetic makeup of the organism.

• true
• false

Eye color, hair color, pod shape, and flower position are all examples of ______________.

• genotypes
• phenotypes

Which of the following statements is true?

• Heterozygous individuals have two of the same allele
• Two recessive alleles is a deadly genetic combination and organisms with this genotype do not survive
• Recessive alleles are 'carried' in the genotype
• Recessive alleles are displayed in the phenotype even when a dominant allele is present
• Recessive alleles do not get passed on to the next generation once they have been masked by a dominant allele

If two parents have genotypes BB and bb, what are the possible genotypes of their offspring?

• BB, Bb, Bb, bb
• Bb, Bb, Bb, Bb
• BB, BB, BB, BB
• BB, BB, bb, bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Punnett squares are useful for _____.

• identifying possible genotypes for the offspring of two parents
• None are correct
• identifying possible phenotypes for the offspring of two parents
• showing the potential genetic combinations for the offspring of two parents
• All are correct

_____ is an organism's genetic makeup, while _____ is an organism's physical appearance.1. Phenotype, allele

• Genotype, phenotype
• Genotype, allele
• Phenotype, genotype
• Dominant allele, recessive allele