Answer:
Aquatic Adaptation
Two genes interact to produce various phenotypic ratios among F2 progeny of a dihybrid cross. Design a different pathway explaining each of the F2 ratios below, using hypothetical genes R and T and assuming that the dominant allele at each locus catalyzes a different reaction or performs an action leading to pigment production. The recessive allele at each locus is null (loss-of-function). Begin each pathway with a colorless precursor that produces a white or albino phenotype if it is unmodified. The ratios are for F2 progeny produced by crossing wild-type F1 organisms with the genotype RrTt.
9/16 Dark Blue 6/16 light blue 1/16 white
A) At least one copy of each dominant allele results in dark blue, at least one copy of either dominant allele produces light blue, and the absence of both dominant allele produces white.
B) If both dominant alleles are present, the result is dark blue. At least one copy of one specific dominant allele is required for light blue. If that dominant allele is not present, the result is white, regardless of whether the other dominant allele is present.
C) At least one copy of both dominant alleles results in dark blue; at least one copy of one of the dominant alleles also results in dark blue, but at least one copy of the other dominant allele produces light blue; and the absence of either dominant allele produces white.
Answer:
The correct option is A) At least one copy of each dominant allele results in dark blue, at least one copy of either dominant allele produces light blue, and the absence of both dominant allele produces white.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Chlorophyll makes some plants look yellow.
True
False
Answer:
TRUE
Explanation:
Explain the differences between eukaryotic and prokaryotic cells.
Explanation:
Comparing prokaryotes and eukaryotes
All life on Earth consists of either eukaryotic cells or prokaryotic cells. Prokaryotes were the first form of life. Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago.
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.
The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure. Eukaryote DNA consists of multiple molecules of double-stranded linear DNA, while that of prokaryotes is double-stranded and circular.
How are animal cells and protozoa similar?
Match the following prokaryotic classes with differing modes of metabolism with the appropriate descriptions - obligate anaerobes - Facultative anaerobes - Aerotolerant anaerobes - Obligate aerobes A. can shift their metabolism between anaerobic and aerobic modes B. Oxygen-sensitive, can only use anaerobic mode of nutrition C. unable to survive for extended periods in the absence of oxygen. They require oxygen for cellular respiration. D. cannot conduct cellular respiration but are not damaged by oxygen when it is present
Answer:
- Obligate anaerobes: B
- Facultative anaerobes: A
- Aerotolerant anaerobes: D
- Obligate aerobes: C
Explanation:
Obligate anaerobes are microorganisms that dead in normal atmospheric oxygen (O2) levels (around 21%). Some examples of obligate anaerobes are procaryotic bacteria such as Clostridium, Fusobacterium, Actinomyces and Peptostreptococcus. Facultative anaerobes are organisms that can grow without O2 and produce energy by fermentation, but they can produce more energy (ATP) by the aerobic respiration mechanism. Facultative anaerobes include both prokaryotic (e.g., Escherichia coli) and eukaryotic (e.g., Saccharomyces cerevisiae) organisms. Aerotolerant anaerobes are microorganisms that can live in O2 atmospheric conditions, but they use fermentation as cellular mechanism to produce energy (ATP). Some examples of aerotolerant anaerobes are lactobacilli and streptococci (bacteria) found in the oral microbiota. Finally, obligate aerobes are organisms that can grow only in normal O2 conditions and metabolize foods through cellular respiration, a process more energetically efficient than fermentation. An example of an obligate aerobe is the human species.
A plant has alleles for white, red, and blue flowers. The majority of the flowers are white, though the color
does not give those flowers an advantage. What might cause this to occur?
Answer:
Environmental factors
Explanation:
If the plant has alleles for all three flowers but only one occurs, then it is most likely a result of tempature or soil pH.
Melting ice caps can result in..
less precipitation
a fall in sea level
colder temperatures
a rise in sea level
Answer:
Rise in sea level
Explanation:
The ice melts into water, more water makes the sea level rise
Answer:
A rise in sea level
Explanation:
And Florida will be nothing but water
probably
3.2 Exploin in detail 5 socio-economic factors
that influence your study
choices and your future career
Answer:
There are various social economic factors that affect a personal choice of higher education course and future career. Some of these factors include
Gender and equity Personal preferences The economic status of the student and the family Employment opportunities for the course being studied Religion and beliefs.Al these factors and many more are said to affect the higher education course that a student takes and the future career of this student
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Q.Why are some diabetes patients treated by giving insulin injections ?
Q. The gap between two neurons is called ------.
➜ The insulin hormone controls the metabolism of sugar. When pancreas does not produce or secrete sufficient amount of insulin into blood, then the sugar level in the blood rises. Therefore, the patient excreates sugar (glucose) in urine, feels excessive thirst and also urinates excessively. The people having severe diabetes are treated by giving injections of insulin.
➜ Synapse.
Insulin injections are given to individuals suffering from type 1 or type 2 diabetes. It is used when oral medication becomes ineffective. Insulin injections work by helping to move sugar from the blood into the body's cells. Moreover, it also inhibits the liver from producing more sugar.
If you click on the picture there is a punnet square that needs to be filled out please help me. I’ve tried everything and for some reason it’s never right, there is also a Phenotype Probability percent that needs filled out.
Resources are classified as renewable or nonrenewable according to the
What makes up an
organism's environment?
Answer:
The biosphere is the part of earth where all life is found, and it consists of biotic (living) factors as well as abiotic (nonliving) factors such as air, soil, water, and sunlight. ... The community and the abiotic factors make up the ecosystem. An organism lives in its habitat within a community.
Explanation:
PLS HELP WILL GIVE BRAINLIEST
1. How many secondary consumers are in this food web?
2: which organism(s) has the least amount of energy available to them?
which is not true about the first 22 pairs of chromosomes in a karyotype
they determine the gender of the individual
each pair has one chromosome from the father and one from the mother
they are called autosomes
they are homologous meaning each pair has the same size shape, and collection of genes
Answer:
The correct answer is - they determine the gender of the individual.
Explanation:
Autosomes are the chromosomes that are numbered or non-sex chromosomes. In humans, there are 22 pairs of autosomes that are numbered from 1 to 22. These chromosomes regulate or control the pattern of inheritance of every characteristic or trait of an organism other than present on the sex chromosomes.
These are homologous chromosomes which means each pair has the same genes and has a similar shape. The gender of an individual depends on the sex chromosome only.
1. You are studying an intestinal cell that is actively making and secreting digestive enzymes . You know that the enzymes are proteinUsing your knowledge of cell structure and function describe where the enzymes are first made, where they are altered to an active form, how they are transported from one part of the cell to another, and how they are released from the cell Be sure that you mention all cell structures necessary for this activity and explain their functions You may use a diagrambut you also must write a discussion in full sentences
Answer and Explanation:
When mRNA leaves the nucleus and meets a free ribosome in the cytosol, it starts the protein building. Ribosomes read the mRNA code and begin protein synthesis by adding the correct amino acid using transference RNA.
Ribosomes attached to the RER membrane are responsible for synthesizing membrane proteins, exportation proteins, or enzymes.
The synthesis of proteins destined to become enzymes, membrane proteins, or exportation proteins starts in the cytoplasm with the production of a molecule portion known as a signal aminoacidic sequence. This signal sequence in the amino extreme of the synthesizing protein, and when it reaches a certain length, it meets the signal recognizing particle that leads the synthesizing protein and associated ribosome to the Rough endoplasmic reticulum, where it continues the protein building until finishing the elongation process. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen, suffering a few posterior steps related to conformation and structure, such as folding to become functional and the initial glycosylation stages.
The new proteins get packaged into vesicles that carry them to the Golgi complex where occurs the final association of carbohydrates and lipids with proteins, to originate glycoproteins and glycolipids.
Enzymes destined for exportation are packaged and sent from the Golgi complex to the cell membrane into vesicles. When the secretory vesicle reaches the target, its membrane fuses with the cell membrane, releasing its content to the extracellular space. This secreting process is known as exocytosis.
When you see a car approaching, what type of neuron receives this informatation first?
a
Sensory neuron
b
Spinal cord
c
Brain
According to scientists, donkeys and horses share a common ancestor. Which evidence shows that the two organisms are related?
Group of answer choices
Both run fast.
They have the same diet.
They have the same bones in their limbs.
Both are tall.
Find the speed of a caterpillar that crawls a distance of 6.0 cm every
2.0 seconds. The equation for speed is v=d/t.
Answer:
3 cm per second
Explanation:
6/2=3 cm per second
Tabitha built a computer model of a weather system. She included information about bodies of water, the Sun, and the atmosphere.
After running the model the first time, Tabitha doubled the size of a freshwater lake in her model. This change caused more moderate temperatures and an increase in precipitation in the locations nearby.
Which two spheres are interacting when a body of water affects the weather of a location as it did in Tabitha's model?
a. atmosphere and geosphere
b. hydrosphere and atmosphere
c. geosphere and hydrosphere
d. hydrosphere and biosphere
Answer:
a
Explanation: because i guessed and got it write
What is the difference between backbone and spinal cord?
Answer:
The difference between Spinal Cord and Backbone is easy to understand: Spinal Cord is the tube-like structure which consists of bundles of nerve fibers. It is covered by the meninges and is surrounded by the cerebrospinal fluid. Backbone or the spinal column is the central axis of the skeleton in all vertebrates.
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Burmese pythons have caused a disruption in the Everglades because they are not native to the area.
True
or
False
Answer:
True
Explanation:
They are an invasive species
Answer:
true
Explanation:
the burmese python is an invasive species and can be up to 26 feet long. this causes them to dominate areas and naturally have no predators. they prey on many animals such as raccoons, rabbits, bobcats, and deer. this has caused a large decline in their population and some animals have even been put on the endangered species list due to the impact. the pythons are causing an enormous disruption to the food chain, taking prey from larger animals or killing off the larger animals causing a surge of others such as squirrels.
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The ribosome is called the ____________ ; because it can read mRNA language & turn it into amino acid language.
Answer:
DNA Translator
Explanation:
The ribosome is called the DNA TRANSLATOR; because it can read mRNA language & turn it into amino acid language.
This amino acid chain is known as polypeptide
5. Which sentence would the author disagree wit
define prokaryotic cell
Which of these is NOT a benefit of using less coal?
what are the choices? 0-0
Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways? A. water balance B. air filtration C. heat balance D. gas exchange
Answer:
d
Explanation:
on edge
Hide Assignment Information Instructions INSTRUCTIONS You are bird hunting moths (both dark and light) that live on trees. As you capture the moths most easily visible against the tree surface, the moth populations change, illustrating the effects of natural selection. In this Lab, you will: Predict the color of moth that will survive better on various colors of tree trunks. Understand how camouflage can promote survival. Explain the process of natural selection.
Answer: The theory of natural selection suggests that some members of the population of species have better advantage of others for survival in terms of better phenotypic traits.
Explanation:
According to the given situation, the moths which have color that remain undetected by me as bird has a phenotypic advantage. As I may not be able to observe them on tree trunk or bark or on leaves I can eat only those moths that can be seen through my eyes. I can capture them easily. Such moths which can change their colors in accordance with the color of the tree can camouflage me easily and I cannot observe them and consume them. This promotes their survival over those detectable moths.
How does waste in the ocean harm the hydrosphere?
Answer: Inadvertent and deliberate discharge of petroleum, improper sewage disposal, and thermal pollution also are seriously affecting the quality of the hydrosphere. The present discussion focuses on three major problems—eutrophication, acid rain, and the buildup of the so-called greenhouse gases. Hope this helps. Can u give me brainliest
Explanation:
Red-green color blindness (c) is a recessive sex-linked trait. A colorblind male marries a normal female.
Their daughter is colorblind. Complete a Punnett square explaining how this is possible.
Sex linked traits can only be held on the X chromosomes, so males only need one while females need two.
What are Sex linked trait?A trait that is sex-linked is one that is governed by an allele or gene on the sex chromosome. The X and Y chromosomes are considered to be the sex chromosomes in humans.
Since qualities are sex-related, a clear pattern is frequently present. As a result, some attributes would be related to an individual's gender or sexual orientation.
Sex linkage is the expression of specific genes on the sex chromosome that results in the manifestation of specific features. For instance, color blindness is a sex-related characteristic with a recessive gene that is located in the
Therefore, Sex linked traits can only be held on the X chromosomes, so males only need one while females need two.
To learn more about Sex linked, refer to the link:
https://brainly.com/question/2093574
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help pls! no scams. Which action would best support the theory that all organisms are made of cells?
a. measuring the size of plants and animals
b. recording the population of a plant or animal species
c. looking at samples of plants and animals through a telescope
d. looking at samples of plants and animals under a microscope
