23. During meiosis, one way that diversity is achieved is through the differenti
ID: 9376 • Letter: 2
Question
23. During meiosis, one way that diversity is achieved is through the differential ways maternal and paternalchromosomes line up at the equator. This phenomenon is known as:
A. Crossing under; B. Random mating; C. Crossing over; D. Random shuffling
24. What is the correct order of classification from the least traits in common to the most traits in common?
1. Order; 2. Genus; 3. Kingdom; 4. Species; 5. Phylum; 6. Family; 7. Class
A. 3,5,1,7,2,6,4; B. 3,7,5,6,1,2,4; C. 3,5,7,6,1,4,2; D. 3,5,7,1,6,2,4; E. None of the above 25. Humans are currently classified as Homo sapiens. An earlier human ancestor was Homo erectus. Please
identify the Genus of the earlier human ancestor. A. sapiens; B. Homo; C. Human; D. erectus
26. Whales utilize which type of fertilization? A. Internal; B. External; C. Terrestrial; D. None of the above
27. During internal fertilization, sperm are deposited directly into the female’s body in order to protect the
gametes. In some female animals, after the sperm fertilizes the eggs, the eggs continue to develop inside the
female, and the developing embryos receive ALL of their nourishment from the mother. These animals are
considered to be: A. Oviparous; B. Viviparous; C. Precocial; D. Ovoviviparous
28. In humans, which gender has separate openings for the urinary and reproductive systems?
A. Men; B. Women; C. Both A and B; D. None of the above
29. An animal’s anatomical structures can be used to construct phylogenetic trees. What is the term given to the
structures of two animals whereas the structures are very similar but have different functions? Ex: Forearm of a
human and the wing of a duck:
A. Vestigial Structures; B. Analogous Structures; C. Homologous Structures; D. None of the above
30. Humans have 46 chromosomes in every somatic cell nucleus. There are 23 chromosomes from mama and
23 chromosomes from papa. Chromosome #3 from mother and Chromosome #3 from father contain
information to control the same genetic traits. During meiosis 1, duplication of chromosomes results in 2 copies
of chromosome #3 from the father and 2 copies of chromosome #3 from the mother. The pair of chromosomes
#3 from the father are refered to as:
A. Sister chromatids; B. Centromeres; C. Homologous chromosomes; D. Spindle apparatus
Explanation / Answer
23. During meiosis, one way that diversity is achieved is through the differential ways maternal and paternal
chromosomes line up at the equator. This phenomenon is known as:
A. Crossing under; B. Random mating; C. Crossing over; D. Random shuffling
24. What is the correct order of classification from the least traits in common to the most traits in common?
1. Order; 2. Genus; 3. Kingdom; 4. Species; 5. Phylum; 6. Family; 7. Class
A. 3,5,1,7,2,6,4; B. 3,7,5,6,1,2,4; C. 3,5,7,6,1,4,2; D. 3,5,7,1,6,2,4; E. None of the above
3. Kingdom
5. Phylum
7. Class
1. Order
6. Family
2. Genus
4. Species
25. Humans are currently classified as Homo sapiens. An earlier human ancestor was Homo erectus. Please
identify the Genus of the earlier human ancestor. A. sapiens; B. Homo; C. Human; D. erectus
26. Whales utilize which type of fertilization? A. Internal; B. External; C. Terrestrial; D. None of the above
27. During internal fertilization, sperm are deposited directly into the female’s body in order to protect the
gametes. In some female animals, after the sperm fertilizes the eggs, the eggs continue to develop inside the female, and the developing embryos receive ALL of their nourishment from the mother. These animals are considered to be: A. Oviparous; B. Viviparous; C. Precocial; D. Ovoviviparous
28. In humans, which gender has separate openings for the urinary and reproductive systems?
A. Men; B. Women; C. Both A and B; D. None of the above
29. An animal’s anatomical structures can be used to construct phylogenetic trees. What is the term given to the structures of two animals whereas the structures are very similar but have different functions? Ex: Forearm of a human and the wing of a duck:
A. Vestigial Structures; B. Analogous Structures; C. Homologous Structures; D. None of the above
30. Humans have 46 chromosomes in every somatic cell nucleus. There are 23 chromosomes from mama and 23 chromosomes from papa. Chromosome #3 from mother and Chromosome #3 from father contain
information to control the same genetic traits. During meiosis 1, duplication of chromosomes results in 2 copies of chromosome #3 from the father and 2 copies of chromosome #3 from the mother. The pair of chromosomes #3 from the father are refered to as:
A. Sister chromatids; B. Centromeres; C. Homologous chromosomes; D. Spindle apparatus
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