Exam (elaborations)
BLY 101 Final with correct answers graded A+
- Course
- BLY 101
- Institution
- University Of South Alabama
BLY 101 Final with correct answers graded A+
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BLY 101 FinalPredict what would happen if an environmental change occurred and caused the death of one member of an asexual reproducing population. - correct answer ✔✔it is highly probable that all members of the population will die
Different forms of the same gene are called _________. - correct answer ✔✔alleles
If I start with 2 chromosomes, how many chromosomes should I have when I finish Meiosis? - correct answer ✔✔1
If a single cell completes both meiosis I and meiosis II and both rounds of cytoplasmic division, how many gametes will form? - correct answer ✔✔4
Crossing over occurs between ___________ during __________. - correct answer ✔✔nonsister chromatids, meiosis
During which of the following phases are sister chromatids pulled apart? - correct answer ✔✔Anaphase II of Meiosis and Anaphase of Mitosis
Which of the following contribute to variation? - correct answer ✔✔A. Crossing over during meiosis B. Random alignment of homologous chromosomes on the equator during meiosis (two of the above)
A germ cell with 100 chromosomes will produce gametes with _______ chromosomes. - correct answer ✔✔50
The contrasting forms of the trait that Mendel examined in his pea plants were _____________? - correct answer ✔✔white and purple flowers A gene that is hidden when the dominant gene is present is/are referred to as ___________? - correct answer ✔✔Recessive gene
Having two genes that are the same for a certain trait is called _____________? - correct answer ✔✔Homozygous
A pea plant that is heterozygous for the production of purple flowers and a pea plant producing white flowers have a _________ chance of producing a pea plant with white flowers. - correct answer ✔✔50%
Elaine is heterozygous for Blood Type A and Kramer is heterozygous for Blood Type B. What is the likelihood that their biological child will have Blood Type O? - correct answer ✔✔25%
In the Snowshoe hare, the gene for melanin production works best when the animal is __________? - correct answer ✔✔Warm
Human skin color variation . . .
A. may be explained as the result of a trait that is linked to a single gene pair or a Mendelian inheritance pattern B. may be explained by the influence of many gene pairs on a trait or a Polygenic inheritance pattern. - correct answer ✔✔May be explained by the influence of many gene pairs on a trait or a Polygenic inheritance pattern.
Is the karyotype indicative of a male or female?
A. Male B. Female - correct answer ✔✔Male
How many men are affected by Polydactyly in the pedigree? - correct answer ✔✔4
Two parents that have both been identified WITH Huntington's disease and are heterozygous have a ________ chance of producing an offspring that will suffer from the disease.
A. 0 B. 25% C. 50% D. 75% E. 100% - correct answer ✔✔75%
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