Unit 7 Genetics Test Review

Which best describes the process shown?

• mutation in which the DNA content of the gene is ltered

• segregation of sister chromatids

• condensation and segregation of the alleles

• crossing-over which alleles are exchanged

What is one advantage of sexual reproduction?

• offspring are identical to parents
• offspring are resistant to viruses
• offspring are born live, rather than from eggs
• offspring inherit a wider variety of genetic information

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

How many times in meiosis does the cell divided?

• 2
• 4
• 3
• 1

If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed - what percentage of the offspring would be homozygous white?

• 0%
• 25%
• 50%
• 75%

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

When two haploid sex fuse together during fertilization they become ______________ 

• haploid cells
• meiosis
• mitochondria
• diploid cells

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NGSS.MS-LS3-2

Are gametes (sex cells) haploid or diploid?

• Haploid

• Diploid

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NGSS.HS-LS3-2

How many haploid daughter cells are produced after meiotic division of one cell?

• 1

• 2

• 3

• 4

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NGSS.HS-LS3-2

Different versions or forms of the same gene are called —

• Sex Cells

• Chromosomes

• Alleles

• Nitrogen Bases

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NGSS.HS-LS3-2

Which sex chromosome combination is for a female?

• XY

• XX

• YY

• XXY

The color purple (P) is dominant to the color white (p). According to the Punnett Square, what is the probability of an offspring being white?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3