Meiosis and Sexual Reproduction

What are genes?

• Regions of RNA on chromosomes that code for lipids

• Regions of DNA on chromosomes that code for lipids

• Regions of DNA on chromosomes that code for proteins

• Regions of RNA on chromosomes that code for proteins

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What are homologous chromosomes?

• Pairs of chromosomes that have different lengths and carry genes that control different traits

• Pairs of chromosomes that have the same length and carry genes that control different traits

• Pairs of chromosomes that have the same length and carry genes that control the same traits

• Pairs of chromosomes that have different lengths and carry genes that control the same traits

What is fertilization?

• The process by which one haploid gamete combines with another haploid gamete

• The process by which one diploid gamete combines with another diploid gamete

• The process by which one diploid gamete combines with another haploid gamete

• The process by which one haploid gamete combines with another diploid gamete

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Are body cells such as skin cells, haploid or diploid?

• Diploid

• Haploid

• Both haploid and diploid

• Neither haploid nor diploid

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What is meiosis?

• The process by which germ cells become specialized cells

• The process by which germ cells divide to form gametes

• The process by which somatic cells become specialized cells

• The process by which somatic cells divide to form gametes

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What is crossing over?

• The process by which homologous chromosomes separate and move to opposite poles

• The process by which sister chromatids are pulled apart at the centromere

• The process by which chromosomal segments are exchanged between homologous chromosomes

• The process by which nuclear envelope forms around the chromosomes

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After telophase I and cytokinesis, are the cells haploid or diploid?

• Neither haploid nor diploid

• Diploid

• Both haploid and diploid

• Haploid

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How do mitosis and meiosis differ?

• Mitosis occurs in body cells, while meiosis occurs in germ cells

• Mitosis forms cells identical to the parent cell, while meiosis forms 4 cells different than the parent cell

• Mitosis occurs in germ cells, while meiosis occurs in body cells

• Mitosis forms 4 cells different than the parent cell, while meiosis forms cells identical to the parent cell

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How are mitosis and meiosis similar?

• both have two cell divisions

• both require DNA replication

• both produce gametes

• both involved crossing over

There are _____ cells produced in meiosis.

• 2

• 4

• 8

• 23

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