a. When crossing triply heterozygous flies (Aa Bb Cc), where each gene has one dominant allele and one recessive allele, the phenotypic ratios among the progeny would be 1:1. b. The genotype of the wild-type male can be deduced based on the phenotypic ratios observed in the crosses with the tester strains.
a. If you crossed triply heterozygous flies (Aa Bb Cc), where each gene has one dominant allele and one recessive allele, you can use the product rule to predict the phenotypic ratios among the progeny.
For each gene, the possible gametes are A and a, B and b, C and c. When you cross the triply heterozygous flies, you can determine the possible genotypes of the offspring:
Genotypes:
AA BB CC (wild type)
AA BB Cc (wild type)
AA Bb CC (wild type)
AA Bb Cc (wild type)
Aa BB CC (wild type)
Aa BB Cc (wild type)
Aa Bb CC (wild type)
Aa Bb Cc (wild type)
The phenotypic ratios can be determined by counting the number of wild-type (dominant phenotype) offspring and dividing it by the total number of offspring:
Wild-type progeny (AA BB CC, AA BB Cc, AA Bb CC, AA Bb Cc, Aa BB CC, Aa BB Cc, Aa Bb CC, Aa Bb Cc) = 8
Total number of progeny = 8 (since each possible genotype occurs once)
Phenotypic ratio: 8 wild-type : 8 total = 1:1
b. To determine the genotype of the wild-type male, we can deduce it based on the phenotypic ratios observed in the crosses with the tester strains.
In the cross with the tester strain AA bb cc, only 1/4 of the progeny are wild type. This means that the male being tested (wild-type male) must be heterozygous for the B and C genes (Aa Bb Cc) since the wild-type phenotype requires one dominant allele for each of the three genes.
In the crosses involving the other two tester strains (aa BB cc and aa bb CO), half of the progeny are wild type. This indicates that the wild-type male is homozygous for the A gene (AA Bb Cc) since the wild-type phenotype requires two dominant alleles for the A gene.
So, the genotype of the wild-type male is Aa BB Cc.
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Answer:
the genotype depends more on if its a boy or girl
Explanation:
b. 4 deer per square mile
c. 6 deer per square mile
d. 8 deer per square mile
Answer;
d. 8 deer per square mile
Explanation;
-Population density is a measurement of population per unit area.
-To calculate the population density, we divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.
-In this case;
Population density = 30,000,000/3,536,000
= 8.48
= 8 (to the nearest whole number)
Thus, the population density will be 8 deer per square mile
Answer: The environment.
Explanation: The environment consists of both the factors like biotic and abiotic factors. The interaction between these factors defines an environment.
The abiotic factors found in the environment consists of the soil, mountain, water, clouds and other non living parts. The biotic factors of the environment consists of the plants and animals.
Environment consists of both biotic and abiotic factors.
Annual temperature ranges in the Southern Hemisphere generally smaller than those in the Northern Hemisphere because there is a higher rate of the water surface in the Southern Hemisphere.
Water is a prominent absorber of radiation and slower radiator of heat than land Environments in the southerly region which overall tend to be lightly moderate than those in the northerly region. This is because the southerly hemisphere has significantly more beach and less land. Water warms up and freezes down more slowly than land. The southerly hemisphere is also significantly less contaminated than the northerly hemisphere because of lower population densities, lower levels of industrialization, and smaller land sizes.
Answer:
It means human is responsible for everything.
Explanation:
Swain who is climate scientist mean that the heat waves occurs due to the human intervention and activities. Human is responsible for the change occurs in climate and global warming. In some areas heat waves occurs which adversely affected human as well as animals and plants. Heat wave is a period of hot weather occurs due to emission of greenhouse gases which increase the temperature of the earth's surface.
Answer:
Mycelium.
Explanation:
Mycelium is a mass of thread-like hyphae that can grow on a surface, decaying material, soil or on a living tissue. It is the vegetative part of a fungus through which a fungus absorbs nutrient from the environment. They are good sources of food for soil invertebrates. They also play a major role in decomposition of plant material.