Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Your dream has come true, you’re a marine biologist studying Narwhals in the arctic. They have been trying to understand the heritability of tusk length in this species. You are able to take measurements of them in the wild, and in an aquarium where they are treated well with temperature-controlled pools, and a standardized diet. Within the aquarium, there is no environmental variation.
In the wild, the total variance was determined to be 10 feet. In the aquarium, total variance between subjects was found to be 3 feet.
A-In the aquarium, what is the Vgenetic ?
B-In the aquarium, VEnvironmental is ?
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- A group of Labrador Retriever males are imported carrying an allele frequency of 0.2. The existing Canadian population of Labradors has an allele frequency of 0.8. A follow up study of the purebred Labrador registration information shows that 30% of puppies registered in Canada after one year were sired by one of these foreign sires. What is the allele frequency in the Canadian male Labrador population? (to two decimal places and round to the nearest 0.01 - don't worry about the frequencies in the females, we will leave that for MBG-3060 next winter)arrow_forwardIn a gorilla population in Zaire we consider a single gene locus with two alleles G and g, with G dominant to g. The frequency of the allele g is 0.01. Assuming Hardy- Weinberg proportions, the frequency of the genotype Gg is:arrow_forwardThe two question below are confusingarrow_forward
- There is a lack of dominance in black (B) and white (W) horse coat colours. An offspring produced from a black horse and a white horse has a blue-roan coat colour (BW). When the blue-roan coat is closely examined, both black and white hair can be found. 20. In an ideal horse population exhibiting Hardy-Weinberg equilibrium, 10 out of every 150 foals have a white coat. Calculate the frequency of the black horse coat allele in the population. Show all work. Express your answer using two significant digits:arrow_forward1. Consider this graph on running speed in huskies Midosspring running speed (m/s) 16 14 12 10 8 + 2 Husky running speed 4 6 8 Midparent running speed (m/s) 10 12 14 16 a. Approximately what is the heritability of running speed in this kennel of huskies? (You can approximate by eyeballing from the graph, no need to calculate the actual slope) b. If the breeder where to selectively breed the dogs, will the dogs run substantially faster in the next generation? c. What else can the breeder do to increase running speed?arrow_forward
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