The accumulation of mutations in a population over generations leads to A.decreased variability B.nonrandom mating C.evolution...
The accumulation of mutations in a population over generations leads to
| A.decreased variability | |
| B.nonrandom mating | |
| C.evolution | |
| D.extinction |
Homework Answers
Accumulation of mutations in a population over generations leads to evolution.
example: long neck giraffe ancestors of modern giraffes had short necks and fed on grass and shrubs, food supply decreased so giraffes had to stretch out their necks to reach the taller trees, their necks become longer as a result of constant stretching, this trait is passed onto the offspring.
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The accumulation of mutations in a population over generations
leads to
A.decreased variability
B.nonrandom mating
C.evolution...
In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal...
In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal to 10^-4 in a gene. A) If we assume the nonsense mutations cause complete infertility and are completely dominant, what is the nonsense mutation rate per gene per generation? (2 points) B) If we assume the nonsense mutations cause complete infertility but are complete recessive, what is the nonsense mutation rate? (2 points)
In a population of 100 lizards, the “A” allele encodes for spots and is dominant over...
In a population of 100 lizards, the “A” allele encodes for spots and is dominant over the “a” allele which encodes for strips. If non-random-mating occurred in this population, meaning lizards only mated with other lizards with the same genotype, how would the allele and genotype frequencies change after two generations of non-random mating? A = 0.5 a = 0.5 I would really appreciate if you could provide an explanation for the steps. Thank you!
In a large plant population that reproduces by pollinator-assisted random mating (outcrossing), the frequencies of the...
In a large plant population that reproduces by pollinator-assisted random mating (outcrossing), the frequencies of the genotypes GG, Gg and gg are 0.04, 0.32 and 0.64, respectively. Honey bees are under threat of decline. A loss of the bee pollinator forces the population to reproduce exclusively by self-fertilization. What will happen to the frequencies of the homozygous and heterozygous genotypes in this population after one generation of self-fertilization? If the same conditions continue to exist for many generations, what will...
In a large plant population that reproduces by pollinator-assisted random mating (outcrossing), the frequencies of the...
In a large plant population that reproduces by pollinator-assisted random mating (outcrossing), the frequencies of the genotypes GG, Gg and gg are 0.04, 0.32 and 0.64, respectively. Honey bees are under threat of decline. A loss of the bee pollinator forces the population to reproduce exclusively by self-fertilization. What will happen to the frequencies of the homozygous and heterozygous genotypes in this population after one generation of self-fertilization? If the same conditions continue to exist for many generations, what will...
Assume a random mating population of 100 diploid individuals (N=100) that has been obligately outbreeding for...
Assume a random mating population of 100 diploid individuals (N=100) that has been obligately outbreeding for many, many generations so that there is no IBD carried forward into the current generation. How much heterozygosity do you expect in this population? Group of answer choices A. 0.005 B. 0.01 C. 0.99 D. 0.995
mutation rate Question 1: In an infinitely large, diploid, random-mating population, we observe the frequency of...
mutation rate
Question 1: In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal to 10 in a gene. A) If we assume the nonsense mutations cause complete infertility and are completely dominant, what is the nonsense mutation rate per gene per generation? (2 points) B) If we assume the nonsense mutations cause complete infertility but are complete recessive, what is the nonsense mutation rate? (2 points)
Hyperhomocysteinemia is a disorder of the methionine metabolism that leads to the accumulation of homocysteine and...
Hyperhomocysteinemia is a disorder of the methionine metabolism that leads to the accumulation of homocysteine and its metabolites. Research has shown that this disease can lead to gastrointestinal disorders, cardiovascular disease, autoimmune diseases, and Alzheimer’s. Describe two pathways that can reduce homocysteine levels to include cofactors and enzymes.
Part 1 Consider the following three populations, each followed over 4 generations Population 1: N =...
Part 1 Consider the following three populations, each followed over 4 generations Population 1: N = 150, 250, 150, 250 Population 2: N = 100, 300, 100, 300 Population 3: N = 260, 260, 20, 260 For each case: 1) Plot population size over time. 2) Calculate, and indicate on the plot, a) The arithmetic mean population size. b) The effective population size. Part 2 Calculate the effective population sizes for the following numbers of breeding individuals: a) 50 males,...
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele...
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele Prop. Genotype Prop. RrGenotype Prop. RR Genotype 0.35 0.13 0.46 0.42 980 Generations Allele Proportion Genotype Proportions 980 Generations Rr RR Generations 500 193 Population Size Population Size Proportion Rallele Proportion rallele 0.57 0.43 0.22 Prop. Genotype Prop RrGenotype Prop. RR Genotype 0.41 0.37 Generations Genotype Proportions Allele Proportion 980 Generations Rr RR Use your results to explain if and how the allele frequencies...
Explain, in detail, why lactate accumulation in plasma leads to increase carbon dioxide (CO2) exhalation.
Explain, in detail, why lactate accumulation in plasma leads to increase carbon dioxide (CO2) exhalation.
mutation rate
Question 1: In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal to 10 in a gene. A) If we assume the nonsense mutations cause complete infertility and are completely dominant, what is the nonsense mutation rate per gene per generation? (2 points) B) If we assume the nonsense mutations cause complete infertility but are complete recessive, what is the nonsense mutation rate? (2 points)
Part 1 Consider the following three populations, each followed over 4 generations Population 1: N = 150, 250, 150, 250 Population 2: N = 100, 300, 100, 300 Population 3: N = 260, 260, 20, 260 For each case: 1) Plot population size over time. 2) Calculate, and indicate on the plot, a) The arithmetic mean population size. b) The effective population size. Part 2 Calculate the effective population sizes for the following numbers of breeding individuals: a) 50 males,...
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele Prop. Genotype Prop. RrGenotype Prop. RR Genotype 0.35 0.13 0.46 0.42 980 Generations Allele Proportion Genotype Proportions 980 Generations Rr RR Generations 500 193 Population Size Population Size Proportion Rallele Proportion rallele 0.57 0.43 0.22 Prop. Genotype Prop RrGenotype Prop. RR Genotype 0.41 0.37 Generations Genotype Proportions Allele Proportion 980 Generations Rr RR Use your results to explain if and how the allele frequencies...
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