Answer:
Try this website: https://www.fs.fed.us/wildflowers/pollinators/What_is_Pollination/syndromes.shtml
Explanation:
Flower color in the garden pea is due to two interacting genes, A and B. If either gene is recessive (aaB_, A_bb, or aabb) then the phenotype is white. A dominant allele must be present at both genes for flower color to be purple. After a testcross of an individual with a genotype of AaBb, what proportion of the progeny will have purple flowers
Answer:
4/16 = 1/4 = 25% of the progeny is expected to be purple (AaBb)
Explanation:
Available data:
Flower color in the garden pea is due to two interacting genes, A and BaaB_, A_bb, or aabb ⇒ white flower A dominant allele must be present at both genes for flower color to be purpleAABB, AaBb ⇒ purple flowerCross:
Parentals) AaBb x aabb
Gametes) AB, Ab, aB, ab
ab, ab, ab, ab
Punnett square) AB Ab aB ab
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
F1) Genotype:
4/16 = 1/4 = 25% of the porgeny is exected to be AaBb4/16 = 1/4 = 25% of the porgeny is exected to be Aabb4/16 = 1/4 = 25% of the porgeny is exected to be aaBb4/16 = 1/4 = 25% of the porgeny is exected to be aabbPhenotype
12/16 = 3/4 = 75% of the progeny is expected to be white(Aabb + aaBb + aabb)4/16 = 1/4 = 25% of the progeny is expected to be purple (AaBb)Which of the following represents an abiotic factor?
O Bacteria
O Protist
O Plants
Wind
Answer:
Last one. Wind, because it is non-living which is basically what abiotic is.
F-R-E-E P-O-I-N-T-S FOR EVERYONE
Answer:
K- T-H-A-N-K-Y-O-U
Explanation:
:))))
help i’ll give you brainilest
What is the difference between genetic drift and natural selection?
Genetic drift is the random increase or decrease of certain genes in a population; natural
selection is not random.
Genetic drift is the selection of random traits in a population; natural selection is the
selection of specific traits.
Genetic drift is the frequency of genes in a population; natural selectic is the frequency
of adaptations in a population.
Genetic drift is the change in a population's genes over time; natural selection is the
evolution of a population over time.
Does a virus have DNA, RNA, or both to carry its genetic material
Answer:
it was one of either it depends so Both
Explanation:
15) Study the food web, What conclusions can be drawn from analyzing this food web?
l. All the energy contained within the organisms in the web comes from the sun.
II. The energy from the caterpillar is transferred to the plant.
lll. The hawk is the top predator.
IV. Energy is transferred from organism to organism in this food web,
V. The bunny is the organism that harnesses the energy from the sun.
A) I only
B) III and IV only
C) I, III, and IV only
D) II, III, and V only
Answer:
C) I, III, and IV only
Explanation:
l. All the energy contained within the organisms
lll. The hawk is the top predator.
IV. Energy is transferred from organism to organism in this food web,
how the cardiovascular, respiratory and digestive systems work together to provide cells with the raw materials they need to ensure healthy cell function
Explanation:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Why does the earth have different layers?
Answer:
The earth has different layers because as it formed, the lighter parts (like continental crust) floated to the surface, and the really heavy parts (like iron and nickel in the core) sank to the middle. It is just like when you mix oil and water: the oil will float to the surface because it is lighter (or less dense) than the water.
Why is this flower able to self-pollinate?
O A. It has a pistil and anthers.
O B. It has stamens and anthers.
OC. It has a pistil and an ovary.
OD. It has stamens and an ovary.
Answer:
B
Explanation:
How can you apply this approach to the classification of living things?
Answer:
Living things are classified into groups that start out large and become more specific in a system of classification called taxonomy. Scientists classify living things at eight different levels: domain, kingdom, phylum, class, order, family, genus, and species.
Explanation:
Hope this helps you
Why are members of the Kingdom Plantae important to members of other kingdoms?
Answer:
C
Explanation:
Plants have the unique ability of photosynthesis. this gives off oxygen to all other organisms
DNA and RNA are made of what 3 part structure?
1)nucleotide
2)codon
3)amino acid
4)nucleic acid
Answer: nucelotide
Explanation: Rna and dna are made up from nucelotides, they each have a five carbon sugar backbone, a nitrogen base and a phosphate group
A species of reef fish,living in ideal conditions,has a new generation of offspring every three months. In the new generation,approximately 200 new fish are added to the population of 10,000 fish.
Answer:
.02
Explanation:
g There are three alleles at a gene determining eye color in a population of wild cats, the B allele (brown eyes) is dominant to both the G allele (green eyes) and the Y allele (yellow eyes). The G allele is dominant to the Y allele. In a population of 1000, there are 100 yellow-eyed cats, 400 green-eyed cats, and 500 brown-eyed cats. What is the expected frequency of the Y allele
Answer:
the expected frequency of the Y allele = recessive allelic frequency = 0.316 ≅ 0.32
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Explain how ocean temperatures affect the climate of coastal cities.
Answer:
Explanation: Warm ocean currents heat the air above the water and carry the warm air to the land, increasing the temperature of the coastal region. The same is true for cold ocean currents, except that they carry cooler air to the land and lower the temperatures of the coastal region.
Answer:
Warm and cold ocean currents can influence coastal climate, but only when local winds come in from the sea. Warm winds heat the air over the ocean, causing temperatures to rise over land. Cold currents will cool the air and add cooler temperatures to the land.
Explanation:
A cross between a pink 4 o'clock plant and a pink 4 o'clock plant results in a
ratio of 1 Red: 2 Pink: 1 White. What type of inheritance pattern is represented
here?
Answer and Explanation:
Red four o clocks are h/o/m/o/z/y/g/o/u/s RR.
White four o clocks are h/o/m/o/z/y/g/o/u/s WW.
R is not dominant to W and W is not dominant to R. This means that there is an incomplete dominance (or semi-dominance), where the phenotypes will mix and the Dominant alleles doesn't mask the affect of the Recessive alleles.
Pink four o clocks are h/e/t/e/r/o/z/y/g/o/u/s RW.
#teamtrees #PAW (Plant And Water)
Answer: Incomplete dominance
Explanation:
Pink is the third phenotype. The red allele and the white allele do not mask each other. The third phenotype is between the two traits.
Which is true about the tundra biome?
a. It receives less direct sunlight than any other biome on earth.
b. It has more trees than any other biome on earth.
c. It can be found at low elevations all over the earth.
d. It has more types of plants and animals than any other biome on earth.
Explanation:
The answer is A. It receives less direct sunlight.
Answer:
For the fisr question it is A it recives less direct sunlight than other biomes .
For the secound question it is B because the source is warmer.
Explanation:
i hope this helped
HELP!! 20 POINTS!!
Why is it more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain?
the trophic pyramid is the reason
what the trophic pyramid is: Trophic pyramid, also called an energy pyramid, showing the progression of food energy. The pyramid base contains producers, organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers
- predators get little energy from the prey they eat so they must consume multiple prey
It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
The trophic levels of food chainThe food chain is defined as a feeding pathway that consists of similar organisms that are placed in the same trophic levels.
Trophic levels in a food chain are those levels that is occupied by a group of organisms that have a similar feeding mode.
The plants which are the producers are at the lower trophic level while the carnivores are at the higher trophic levels.
The carnivores eats meat from other animals but not plant or plant products which obtain direct energy from sunlight.
Therefore, It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
Learn more about food chain here:
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Describe the preservation principle of salting
Salting, especially of meat, is an ancient preservation technique. The salt draws out moisture and creates an environment inhospitable to bacteria. If salted in cold weather (so that the meat does not spoil while the salt has time to take effect), salted meat can last for years.☜(ﾟヮﾟ☜) (⌐■_■)
Which statement accurately describes a phyroclsstic flow
Answer:
Pyroclastic flows, which consist of basaltic lava infused with incandescent ash and lava fragments, can reach many miles away from their sources because they are nearly frictionless and are driven by gravity.
Explanation:
For the human population to increase in size, what must exceed the death rate?
birth rate
mortality
limiting factors
carrying capacity
Answer:
carrying capicity
Explanation:
the carrying capacity is the amount of species or organisms that can live in a given environment without altercations. So the carryong capicity would have to increase so that more organisms can occupy the given space.
Answer: Birth Rate
Explanation:
1 pc
Which structure does the following picture represent? *
Nitrogenous base
O Nucleotide
O Deoxyribose
Please no links ty
Definition of respiration
a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances
Answer:
A process of oracajsjsjsjsjsjjss
Explanation:
Nithingbs lol just for poimts
Earthquakes occur along the San Andreas Fault. Which is an example of this type of plate boundary
female reproductive system (side view)
Answer:
.................................
Letter A represents a wave's _____.
A. wave height
B. crest
C. wavelength
D. trough
which part control one direction transmission of impulses
Select all the correct
Images.
Select the atomic models that belong to the same element.
Answer:
Theres no image
Explanation:
Describe the pattern of inheritance that is most likely associated with a mutation in the MT-ND5 gene. Explain why individuals are not typically heterozygous with respect to mitochondrial genes.
Answer:
this gene is a mitochondrial gene and therefore it is maternally inherited
Explanation:
The MT-ND5 gene is a gene of the mitochondrial genome that provides instructions for synthesizing a protein called NADH dehydrogenase 5, which is part of the complex I (the first enzyme of the respiratory chain). In most multicellular organisms, the mitochondrial DNA (mtDNA) is inherited from the mother (i.e., maternally inherited), whereas nuclear DNA (i.e., nuclear genome) is inherited equally from both parents. For example, mitochondria in human sperm are usually destroyed after fertilization. In consequence, mitochondrial mutations are transmitted by maternal inheritance, and individuals, therefore, cannot be heterozygous for mitochondrial genes.
The pattern of inheritance that is most likely associated with a mutation in the MT-ND5 gene is
MT-ND5 is a mitochondrial genome coded gene responsible for the protein NADH-ubiquinone oxidoreductase chain V protein (ND5). ND5 is a sub-unit od NADH dehydrogenase, a mitochondrial protein. The mutant MT-ND5 will be transferred to the progeny via maternal mitochodral mtDNA.Individuals are not typically heterozygous with respect to mitochondrial genes because
Heterozygousity of alleles of a particular gene arises due to contribution of both maternal and paternal genes. This is what happens for nuclear chromosomes. Mitochondria is an organelle that contains its independent genome. Only maternal mitochondria gets selected and thus are successfully transferred to the next generation post fertilization.For more information on MT-ND5 gene
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