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Which hormone rises immediately after fertilization and is thu

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Which hormone rises immediately after fertilization and is thus used to identify pregnancy on urine testing strips? Select one:

Estrogen
Luteinizing hormone
Follicle stimulating hormone
Human chorionic gonadotropin
Progesterone

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Question 3

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Question 2

Two independently assorting genes that control hair color in mice are the A and C genes. For the A gene, the mice can either be AGOUTI (A_) or BLACK (aa). For the C gene, the mice can either be PIGMENTED (C_) or ALBINO (no pigment, cc). There is recessive epistasis for these phenotypes, with ALBINO epistatic to AGOUTI and BLACK. True-breeding ALBINO mice were crossed to true-breeding BLACK mice. All the F1 from this cross had AGOUTI-colored hair. The F1 progeny were intercrossed to generate F2 progeny. For the F2 progeny, 89 were AGOUTI, 32 were BLACK, and 39 were ALBINO. What is the expected number of F2 albino mice that have the genotype AA cc? Note: you must type out ALL calculations and BOLD your final answer. Solution: To determine the expected number of F2 albino mice with the genotype AA cc, we need to consider the genotypes of the F1 mice and their possible combinations in the F2 generation. From the given information, we know that the F1 mice all have the genotype Aa Cc (AGOUTI-colored hair). When these F1 mice are intercrossed, the possible genotypes of the F2 progeny can be determined using a Punnett square. The Punnett square for the A gene (A_ x A_) would result in 3 possible genotypes: AA, Aa, and Aa. The Punnett square for the C gene (cc x cc) would result in only one possible genotype: cc. Combining the genotypes from both genes, we can determine the possible genotypes of the F2 progeny: AA cc: 1/4 (from the Punnett square) Aa cc: 2/4 (from the Punnett square) Aa cc: 1/4 (from the Punnett square) To calculate the expected number of F2 albino mice with the genotype AA cc, we need to multiply the total number of F2 progeny (160) by the probability of each genotype: Expected number of F2 albino mice with genotype AA cc = (1/4) * 160 = 40 Therefore, the expected number of F2 albino mice with the genotype AA cc is 40.

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Question Text	Which hormone rises immediately after fertilization and is thus used to identify pregnancy on urine testing strips? Select one:
Topic	All topics
Subject	Biology
Class	Class 11

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