Answer:
4/16 (i.e. 25%)
Explanation:
A dihybrid cross is a cross between two organisms/lines/genes that are hybrids (i.e., heterozygous) for two different traits. In a standard dihybrid cross, there is a relation of complete dominance for both loci, i.e., there are two alleles that are completely dominant and thus mask the effects of the corresponding recessive traits. In a dihybrid cross involving two different genes that assort independently into gametes during meiosis, with dominant alleles "A" and "B" and recessive alleles "a" and "b", respectively, the expected phenotypic ratio will be 9:3:3:1 (ie. 9/16 A_B_, 3/16 A_bb, 3/16 aaB_ and 1/16 aabb), while the expected genotypic ratio of double heterozygous "AaBb" individuals will be 4/16, i.e. 25%.
Representation:
P generation >> AaBb (father) X AaBb (mother)
Gametes (for both parents) >> 1/4 AB; 1/4 Ab; 1/4 aB; 1/4 ab
F1 generation >> 1/16 AABB; 2/16 AABb; 2/16 AaBB; 4/16 AaBb; 1/16 AAbb; 2/16 Aabb; 1/16 aaBB; 2/16 aaBb; 1/16 aabb
Explain the relationship between DNA sequence, amino acid sequence, and protein structure and function.
Answer:
The sequence of DNA may be associated with the sequence of amino acids, and the sequence of amino acids to the three-dimensional shape of the protein. It is the sequence of DNA, which provides the code for the amino acid sequence, and the sequence of amino acids further determines the protein structure that further influences the function of the protein.
When the sequence of DNA changes it causes a change in the sequence of mRNA, further resulting in the change in the sequence of DNA's nucleic acid and the sequence of amino acid. The sequence of amino acids of a protein is accountable for the composition of the protein. The composition of a protein is accountable for its function. The function and composition of a protein are primarily accountable for the organism's trait.
A human skin cell is observed. It is found to have two distinct nuclei each having 46 unreplicated chromosomes. These observations would be seen if the cell is in____.
a. G2 of interphase
b. metaphase of mitosis
c. S of interphase
d. telophase of mitosis
e. prophase of mitosis
Answer:
c
Explanation:
During the telophase stage of mitosis, a cell is observed with two distinct nuclei with 46 unreplicated chromosomes. Thus, the correct option is D.
What is Mitosis?
Mitosis is the process of cell division by which a cell replicates its chromosomes (genetic material) and then segregates that into two daughter cells, producing two identical nuclei in preparation for the division of cell. Mitosis is followed by equal division of the cell's content into two daughter cells with the identical genomes.
During the telophase stage of cell division, the spindle fibers attached to chromatids disappear. Once the daughter chromosomes arrive at the poles, a nuclear envelope starts reappearing around each set of chromosomes. And, at the end of telophase stage of mitosis, there are two nuclei in one cell, known as daughter nuclei that contains an exact copy of chromosomes.
Therefore, the correct option is D.
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List the name and functions of the major protein involved in transcription.
Answer:RNA polymerase
Explanation: adds nucleotides to form an mRNA copy from DNA by binding to a promoter sequence at the start of a gene, using the DNA template to synthesise the mRNA, and stopping at a termination sequence
The functions and names include adding nucleotides to form an RNA (RNA polymerase), binding DNA for promoting transcription (transcription factors), and stopping transcription at the termination sequence.
What is transcription?Transcription is the cellular process by which a code in the genetic material (DNA) is passed to another nucleic acid called RNA.
During gene transcription, a fragment of DNA called gene is used as a template to create a messenger RNA.Subsequently, this mRNA is then used as a template to create a protein by a process called translation.In conclusion, the functions and names include adding nucleotides to form an RNA (RNA polymerase), binding DNA for promoting transcription (transcription factors), and stopping transcription at the termination sequence.
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What should one do if the results of an experiment consistently do not support the original hypothesis?
Answer:
Change the hypothesis to match the results.
what statement about thylocoids is not true
Answer:
Explanation:
I really wouldn’t know
like not to get political or anything but wth
is oatmeal
Answer:
i feel like its a form of soup
Explanation:
Answer:
Dry Breakfast lol
Explanation:
Where is the gene for eye color found in a cell
Answer:
OCA2 and HERC2
Explanation:
An acorn when first planted only weighs one or two ounces. Over many years, it can grow into a tree that weighs three or five tons. Where does all that matter come from?
a. water
b. CO2 from the air
c. energy from sunlight
d. nutrients in the soil
Answer:nutrients in the soil
Explanation:
If a new moon is on June 1st then a full moon will occur on *
June 7.
June 21.
June 14.
June 28.
Answer:
june 28
Explanation:
What are the items that attach on the inside of the mineral to give the mineral its shape
Answer:
Molecules.
Explanation:
Molecules are the items that attach on the inside of the mineral to give the mineral its shape. The molecule of a mineral is a crystal three-dimensional regular structure (arrangement) of chemical particles that are bonded together and determines its shape.
Due to the fact that, these molecules are structurally arranged or ordered and are repeated by different symmetrical and translational operations they determine the shape of minerals.
Which of these is an example of a CLIMATE region zone?
A. tropical
B. foggy
C. overcast
D. sunny
Answer:
tropical
Explanation:
Answer: B foggy
hope i helped others who really need it!
Help asap please !!!
Answer:
it is d
Explanation:
TOM CREATES A MODEL THAT SHOWS THE MOVEMENT OF THE TECTONIC PLATES OF THE EARTH'S SURFACE. IF HE WANTS TO USE THE MODEL TO UNDERSTAND THE CONCEPT OF HOW A MOUNTAIN IS FORMED, HOW DOES THAT MODEL HELP HIM? *
A. IT SHOWS ALL OF THE PLATES IN THE CORRECT LAYOUT.
B. IT EXPLAINS IN DETAIL HOW MOUNTAINS ARE FORMED.
C. IT DISPLAYS DETAILS THAT CANNOT BE SEEN IN A DRAWING.
D. IT SPEEDS UP A PROCESS THAT TAKES MILLIONS OF YEARS.
Answer:
a: i think
Explanation:
What is the chemical equation for Cellular Respiration?
Answer: C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:The products of one process are the reactants of the other. The equation for cellular respiration is the direct opposite of photosynthesis
1) The main function of the circulatory system is to do which of the following?
A. Carry blood throughout a person's body
B. Take in oxygen for transport to the body
C. Distribute blood to the heart
D. Keeps a person's heart beating
PLZ HELP WILL GIVE BRAINLIEST
Which of the following best describes how the types of cell reproduction relate to major groups of organisms?
Group of answer choices
Meiosis only occurs in organisms that reproduce sexually.
Meiosis only occurs in plants and fungi.
Mitosis occurs only in animals with backbones.
Mitosis occurs only in organisms that have cell walls.
meet. /vss-dkir-kfy interested only
Answer:
no <3
Explanation:
What can you conclude about the structure of mitochondria?
Answer:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate
Explanation:
hope that helped ;/
Answer:
Mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae
Which of the following and closes their DNA in a nucleus?
Bacteria
streptococcus
Frogs
Coli
Answer:
the answer is coli
Explanation:
HAIR ANALYSIS
An investigator is excited to find a hair with the follicle attached when searching for evidence at a crime scene. Explain why the investigator might be excited.
The fact they hair follicles contains cellular materials rich in DNA will give them a strong lead in their investigation. Hence, the excitement.
The bottom of the hair follicle marks the point where hair growth begins, Investigators are often helped in their crime research by the outcome of DNA test. Therefore, investigators often seek materials or elements at crime scenes which could be evaluated to gives DNA result of potential suspects.Therefore, the fact that hair follicles contain cellular materials which are rich in DNA, will excite investigators as that have obtained a key lead in their investigation.
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which one is better? natural , synthetic or both
Answer:
Natural Is better
Explanation:
Natural Chemicals are produced by nature without any human intervention. Synthetic may or may not be found in nature
"What is the function of the organelle known as the mitochondria" a:to make carbon hydrates b: to make lipids c: to make ATP d: protein synthesis
Answer:
To make ATP
Explanation:
Why do plants need glucose?
Pls answer correctly I will give a brainless also
Which animal is likely to have the highest basal metabolic rate (oxygen consumption per unit body mass)?
Answer:
Hummingbirds
Explanation:
The animal which is likely to have the highest basal metabolic rate (oxygen consumption per unit body mass) Is the Hummingbird.
The hummingbird have a very small mass when compared to other animals or humans but they perform a lot of activities which is also the main reason why they consume volumes of nectar which is proportional to its size.
1. Part of mollusk body that houses reproductive and digestive organs
Answer:
Nothing
Explanatio
nothing
4. What are stem cells?||
a. Cells that can produce any type of offspring cell
b. Cells that contain stem structures used in reproduction
c. Haploid cells that can produce any type of offspring cell
d. Cells which are found only in plants
Answer:
Haploid cells that can produce any type of offspring cell.
hope it helps!
A waxing moon *
pls help
occurs between a Full Moon and 3rd Quarter Moon.
occurs between a New Moon and a First Quarter Moon.
is when the light of the moon is diminishing (going away).
is when the entire face of the moon is completely illuminated.
Answer:
Between a New Moon and a First quarter Moon.
(And I think when the entire face of the moon is completely illuminated. But I'm unsure about this part.)
Explanation:
Which macromolecule provides the blueprint for living things by storing and transmitting genetic information?
Answer:
I think the correct answer is nucleic acid. There four major classes of macromolecules and these are lipids, carbohydrates, proteins and nucleic acids. Among these nucleic acid would best fit the definition. Examples of nucleic acids are DNA and RNA
Unlike other careers in neurology, all doctors of neurology who want to apply for work in the US must first go through
certification.
licensing.
training.
a background check.
The correct answer is B. Licensing.
Explanation
The Neurologist is a doctor who has specialized in the study of diseases and disorders that affect the nervous system. When a person in the United States wishes to practice as a neurologist, they must follow some steps. You must first prepare to enter medical school by studying an area related to medicine such as chemistry, physics, biology, among others, which conceptually prepares you for the next step. In the second step, you must apply to medical school, where you will be put to the test with the Medical College Admission Test (MCAT) to measure your knowledge on this subject. Once you enter medical school, there you will learn for two years everything related to the necessary concepts and theory about medicine and later you will have to serve as a medical apprentice in university hospitals where you will apply what you learned.
Third, once the doctor has obtained his title that accredits him as a doctor, he must obtain one of the medical licenses that USMLE (United States Medical Licensing Examination) or COMLEX (Comprehensive Osteopathic Medical Licensing Examination of the United States ) doctors must have in the United States. Finally, the doctor must serve for three years as a resident in a hospital focused on an area related to Neurology and one more year of internship. According to the above, the correct answer is B. Licensing.
Define photosynthesis, cellular respiration,
autotroph, heterotroph, herbivore, carnivore,
omnivore
Answer: Omnivore is an animal that eats both plants and animals.
Carnivore is an animal that eats only meat. Herbivore is an animal that eats only plants.
Heterotroph is an organism deriving its nutritional requirements from complex organic substances.
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Explanation: Sorry they’re out of order in accordance to how you had them.