In an experimental investigation, the group that is not manipulated by the researcher and is then compared to the experimental group is called the group
In rats, gene B produces black coat color if the genotype is B–, but black pigment is not produced if the genotype is bb. At an independent locus, gene D produces yellow pigment if the genotype is D–, but no pigment is produced when the genotype is dd. Production of both pigments results in brown coat color. If neither pigment is produced, coat color is cream. Determine the genotypes of parents of litters with the following phenotype distributions. Part A 4 brown, 4 black, 4 yellow, 4 cream
Answer:
Bbdd and bbDd
Explanation:
From the illustration:
B_dd - black color
bbD_ - yellow color
B_D_ - brown color
bbdd - cream color
In order to produce litters in the ratio 4 brown, 4 black, 4 yellow, and 4 cream; the genotypes of the parents must be Bbdd and bbDd. The cross between the two parents would be such that:
Bbdd x bbDd
4 BbDd - brown color
4 bbDd - yellow color
4 Bbdd - black color
4 bbdd - cream color
See the attached image for the Punnet's square analysis of the cross.
RNA is chemically similar to DNA except that its sugars have an additional oxygen atom,
and the base thymine is replaced by a structurally similar base called
I can give you one answer and that is that im sure the answer has a weird name so sara is out of the question.
what is quardratic equation ??express its formula .....!please gyus follow me
Active transport is used to transport very large molecules true or false
Answer:
True
Explanation:
1. What did Linnaeus use to classify living things?
Answer:
Perhaps the single greatest contribution Linnaeus made to science was his method of naming species. This method, called binomial nomenclature, gives each species a unique, two-word Latin name consisting of the genus name and the species name. An example is Homo sapiens, the two-word Latin name for humans.
Explanation:
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It is from Google
Binomial nomenclature, which Carolus Linnaeus created, is a system for categorizing living things. Linnaeus was a Swedish botanist and biologist.
Binomial nomenclature is a biological system for naming organisms.
It is quite difficult to identify an organism internationally and keep track of the number of species when it has multiple local names.
Some of the features of binomial nomenclature that Linnaeus used to classify living things are:
Latin names are used because they are universal and consistent.
The process of naming each organism uniquely using the two words "genus" and "species."
The arranging of living things into a hierarchy, with each organism being given a position based on how similar it is to others.
Humans, for instance, are known as Homo sapiens. Its name, Homo, translates to "man" in Latin. The name of the species, sapiens, means "wise".
Therefore, Binomial nomenclature is used by Linnaeus to classify living beings.
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what is the meaning of condition
Answer:
The existing state or state of health
Explanation:
Earth's core is mainly composed of.......
A:iron and aluminum.
B:silicon and hydrogen.
C:iron and nickel.
D:silicon and oxygen.
Answer:C
Explanation:
Answer:
C:iron and nickel.
Explanation: Vote me Brainliest Thx
What is the volume of a block charger (must be in centimeters)
Answer:[tex]\lim_{n \to \infty} a_n \neq \sqrt{x} x^{2} \\[/tex]
Explanation:
Cuts heal when growth factors in the dermal layer of the skin signal cells in the epidermal layer to divide. This process takes time and coordination as shown in the figure below. In the past 10-20 years, researchers have conducted many in-vitro and animal studies that have showed promise using growth factors to facilitate healing in impaired wounds, bone regeneration, and nerve regeneration. Researchers hope that the application of growth factors may be used clinically to enhance the wound healing process. The cellular process that enables the cells to grow and develop into tissue is —
Answer:
mitosis
Explanation:
Remember, mitosis is the process where a single cell divides resulting in generally two identical cells, each containing the same number of chromosomes and genetic content as that of the original cell.
What is the purpose of stage directions?
Answer:
The purpose of stage directions is ,stage directions serve many functions , but their primary purpose is to guide actors’ movement on the stage, called blocking.
Explanation:
Their primary purpose is to guide actors’ movement on the stage, called blocking.
Answer:
"To describe details about where a scene takes place and how an actor must deliver his or her lines"
Explanation:
I got it right on my test ;)
The energy used in photosynthesis come from what??
Answer:
chloroplasts.
Explanation:
Chloroplast
Chloroplasts are organelles that conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight, converts it, and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water in plant and algal cells. They then use the ATP and NADPH to make organic molecules from carbon dioxide in a process known as the Calvin cycle. Chloroplasts carry out a number of other functions, including fatty acid synthesis, much amino acid synthesis, and the immune response in plants. The number of chloroplasts per cell varies from one, in unicellular algae, up to 100 in plants like Arabidopsis and wheat.
Why must dioecious organisms find mates in order to reproduce?
Answer:
Most familiar is biparental reproduction (sometimes called dioecious reproduction). ... Dioecious reproduction leaves the greatest genetic variability among offspring (an advantage under changing conditions or in competition or when faced with disease), but the organisms must find mates.
Most of the dioecious organisms find mates in order to reproduce because they are unisexual in nature and they always need a partner to reproduce.
What are the two types of reproduction ?The two types of reproduction are sexual and It is the mating between two partner that happens in the case of sexual reproduction. In the case of asexual it is the single parent giving rise to its younger ones.
In the case of dioecious animals that is the organisms bearing either of males or either of females and in this case it is hard for organisms to give birth to their younger ones individually.
dioecious animals need to find the partners as per the compatibility and the specificity. The individuals with the compatibility and the specific orientations give rise to their younger ones and this process is called as reproduction.
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Which of the following is an example of applied research?
A shoe company develops a new material that can better absorb impact for a new running shoe.
A scientist studies the way human cells react to changes in temperature to better understand how
people live in extreme climates.
A teacher leads her students though the dissection of a frog so they can study different organ
systems.
An astronomer is curious about telescope lenses and builds a lens that is a composite of several
different materials.
Answer:
The example is "A scientist studies the way human cells react top changers in temperature to better understand how people live in extreme climates"
BIOLOGY HELP, 1 QUESTION
Answer:
D. glucose, a large sugar
Why does a gummy bear soaked with water shrink after being soaked with salt water?
Answer: Because they were placed in a hypertonic solution, there was a natural tendency for water to leave the gummy to create an isotonic solution. The greater amount of salt in the salt water solution would cause more water to leave the gummy. Therefore, the gummy would shrink more in a higher concentration of salt water
Explanation:
The gummy bear shrinks after being soaked with salt water because the gummy bear loses water to the environment.
OSMOSIS:
Osmosis is the process whereby water moves from a region of higher concentration to a region of lower concentration through a semipermeable membrane. The salt water in this question represents a hypertonic solution that contains high salt conc. but low water concentration. This means that if the gummy bear is placed in a salt water, water will move from the cells of the gummy bear (low concentration of salt) to its environment (high salt concentration) based on osmotic principle. Therefore, gummy bear shrinks after being soaked with salt water because the gummy bear loses water to the environment.Learn more at: https://brainly.com/question/19803174?referrer=searchResults
If you inoculated a lactose phenol red broth with a bacterium and after 24 hours, the broth turns yellow. You accidentally leave it in the incubator an additional 48 hours, after which the same broth turns into a dark red/pink (magenta). This process is called
Answer: Deamination
Explanation: Deamination is simply the removal of an amino group from a compound, in this instance, from peptone in the phenol red broth.
Within 24-48 hours is the time frame which bacteria can be able to fully ferment carbohydrates (glucose or lactose) and after 48 hours, carbohydrate runs out because it has all been utilized leading to a rise in pH (alkaline) as the bacteria utilize peptones to give alkaline by-products.
can be felt as you try to run in water
Answer: air
Explanation:
Why do you pair up the first two electrons?
Explanation:
because of the Pauli exclusion principle
43 protons, 55 neutrons, and 44 electrons. What is the charge of the atom’s nucleus?
Answer:
23
Explanation:
Took the test got a 100%
3
What effect of the disappearance of the otters on the diet of the glaucous-winged gulls?
what type of energy is present in the batteries of a flashlight
Answer:
light
Explanation:
Answer:When the flashlight is turned on, the chemical energy stored in batteries is converted into electrical energy that flows through wires of flashlight.
Explanation:
What is the length of the y component of the vector shown below?
a. 5
b. 4
c. 2
d. 0
Answer:
5
Explanation:
What is the length of the y component of the vector shown below?
a. 5
b. 4
c. 2
d. 0
Answer:
c. 2
Explanation:
count 2 down on the y-axis
How does increased biodiversity increase the stability ot a community
Answer:It crease more population .
Explanation:
how quickly can bacterial contamination occur
Answer:5-10 sec
Explanation:
6. Which of the following would suggest that two species shared a common ancestor?
Answer: the third one
Explanation: cause biology
"Histology Lab Tissues are groups of cells with similar shape and function. The purpose of this lab is to give you experience looking at and identifying tissue slides taken from areas all over the body. Epithelium 1. What is the primary purpose of all epithelial tissue? 2. Besides skin, give two examples of different body "surfaces" that are exposed to the outside environment and would need a lining of epithelium. 3. Label the following as squamous, cuboidal, or columnar."
Answer:
1. The primary purpose of all epithelial tissue is to cover the different body surfaces, this includes cavities that are not in contact with the exterior and parts of the body that are in contact with the exterior.
2. Tongue and esophagus.
3. The images with the types of epithelium are attached.
Explanation:
The main purpose of epithelial tissue is to cover all the surfaces of our body. These are the cavities, and the parts that are in contact with the exterior. They create barriers that protect the body, secrete, absorb substances, allow the passage of specific elements, and stop the entrance of others. The functions vary according to where the tissue is in the body.
The tongue, as it is in contact with the exterior and with the food that enters our mouth, it has a stratified squamous epithelium. The thickness of this epithelium protects it against the different things that can damage or enter through it.
The esophagus has a nonkeratinized stratified squamous epithelium that protects the esophagus from the damage, that food or antigens may cause.
Squamous epitheliums have cells with a not specific shape that has their nucleus in the center.
Cuboidal epithelial have lined cells with a cuboidal shape.
Columnar epithelial have lined cells with a rectangular shape, and their nucleus is near the basal region.
He ar malignt tumors diferent from benign tumors?
Answer:
A tumor is an abnormal lump or growth of cells. When the cells in the tumor are normal, it is benign. Something just went wrong, and they overgrew and produced a lump. When the cells are abnormal and can grow uncontrollably, they are cancerous cells, and the tumor is malignant.
Explanation:
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The digestive system includes your mouth, esophagus,
stomach, small and large intestines. Identify two ways that
the digestive system works with other systems.
Answer:
intestine i believe
Explanation:
because i remeber back when i was learning about it
What naturally cycled element is so abundant atmospherically and vital for nucleic acid and protein synthesis, yet
not directly available for use by animals and plants?
A. Carbon
B. Oxygen
Nitrogen
Phosphorus.
D.
C.
Answer:
Nitrogen
Explanation:
Nitrogen is the most abundant element in our atmosphere and 7th most abundant in the universe. It is vital in the formation of nitrogenous bases which are the key bonds that form nucleic acids such RNA and DNA.