Answer:
DNA is made of chains of four smaller molecules called "Nucleotides".
Explanation:
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine) in DNA is known as a nucleotides.
Where are attached ribosomes found?
Answer:
Attached, or bound, ribosomes are found on the exterior of an organelle called the endoplasmic reticulum.
A __________ is an area of hundreds of kilometers of ocean with fish or plant life.
What explains how the parents in a family both have the same eye color, but some of their children have a different eye color? Assume for this example that eye color is determined by a single gene.
A. One parent is homozygous dominant, and the other heterozygous for a gene that controls eye color allowing some of the children to express a different trait.
B. The parents are both homozygous dominant for a gene that controls eye color allowing some of the children to get two recessive alleles.
C.One parent is homozygous dominant, and the other homozygous recessive for a gene that controls eye color allowing some of the children to express a different trait.
D. The parents are both heterozygous for a gene that controls eye color allowing some of the children to get two recessive alleles.
The correct option is D. The parents are both heter0zyg0us for a gene that controls eye color allowing some of the children to get two recessive alleles.
What is complete dominance?When the dominant allele completely masks the recessive allele, we talk about complete dominance.
This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
In the exposed example, let us assume that the alleles that code for eye color are the followings,
E is the dominant allele and codes for the dominant colore is the recessive allele and codes for the recessive colorIf at least one parent is h0m0zyg0us dominant for the trait, EE, the whole progeny will express the dominant trait because all of them will carry at least one dominant allele.
If both parents are heter0zyg0us Ee, some children will express the dominant trait and some other the recessive trait. This is because some of the children receive at least one dominant allele and some others only receive recessive alleles.
Cross:
Parentals) Ee x Ee
Gametes) E e E e
Punnett square) E e
E EE Ee
e Ee ee
F1) Genotype
1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant EE
1/2 = 50% of the progeny is expected to be heter0zyg0us Ee
1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive ee
Phenotype
3/4 = 25% of the progeny is expected to have the dominant eye color
1/4 = 25% of the progeny is expected to have the recessive eye color
The correct option is D. The parents are both heterozygous for a gene that controls eye color allowing some of the children to get two recessive alleles.
You can learn more about complete dominance at
https://brainly.com/question/1953851
#SPJ1
Some viruses use a ____ cycle before beginning the lytic cycle in which the viral dna is inserted into the hosts dna
a. helical
b. lytic
c. lysogenic
d. binal
The study of the interactions between drugs and their receptors and the series of events that result in a pharmacologic response is called
Answer:
Pharmacodynamics (PD) is the study of the biochemical and physiologic effects of drugs (especially pharmaceutical drugs
Microorganisms that are difficult to grow in the laboratory because they have complex nutritional requirements are typically called _________.
select the correct answer from each drop down menu
complete the sentence about sea floor spreading
seafloor spreading is caused by ___ (divergent, convergent, transform) boundaries and results in ___ (more continental land, mountains on land, mid ocean ridges)
Answer:
divergent,mid ocean ridges
Explanation:
the seafloor diverge from each other causing the land to go thinner and thinner and thinner and make an opening between the floors and continue to move away from each other until they touch a more firm land to be able to stop, then the mid ocean ridges come between the floors where inside there is water and on the side there are the ridges
The cytochrome oxidase-positive bacterial species that is DNAse negative, ornithine decarboxylase positive, and is associated with gastroenteritis in children after the ingestion of contaminated water is most likely:
Answer: a selection variable
Explanation:
Answer:
a selection variable
Explanation:
why is nicotine harmful for you
Common Side Effects: Nicotine is known to cause decreased appetite, heightened mood, increased heart rate and blood pressure, nausea, diarrhea, better memory, and increased alertness.
1 Minute, 15
1
Ø
III
The circle and squares that are shaded in
mean that those individuals
?
are females
are carriers for the trait or disorder
are not affected with the trait or disorder
are affected with the trait or disorder
Flexibility can be defined as
A. The ability to perform or retain the center of mass over the base of support.
B. The range of movement possible at a joint or series of joints.
C. The ability to quickly change body position or direction of the body.
By which process is water lost from a leaf?
a active transport
b diffusion
c osmosis
d photosynthesis
Answer:
Explanation:
It is transpiration but seeing as it isn't in the options the closest i can think of is osmosis though it doesn't sound right but sorry if its wrong
What additional procedure must be done to indicate glucose is present?
The glucose urine test estimates the amount of sugar (glucose) in a urine sample. The existence of glucose in the urine is called glycosuria or glucosuria. Glucose classes can also be calculated using a blood test or a cerebrospinal fluid test.
What is diffusion?Diffusion refers to the natural tendency of a system to homogenize the concentrations of chemical species within it.
It is an irreversible transport phenomenon that results in the migration of chemical species into a medium. Under the effect of the thermal agitation, a displacement of the constituents of the zones of high concentration towards those of low concentration is observed.
Thus, The glucose urine test estimates the amount of sugar (glucose) in a urine sample.
To learn more about glucose click here:
https://brainly.com/question/2396657
#SPJ1
What/who are primary consumers in the food chain process?
Answer:
Explanation:
Ruminant animals. Cows, goats, zebras, and giraffes are examples of primary consumers and these herbivores feed on plant material like grass, branches, and roots.
Birds. Many birds are examples of primary consumers because they only eat seeds, cherries,
5. Which statement best describes the geocentric model of our solar system?
Answer:
Earth is at the center.
Explanation:
The geocentric model is a model system that explains how the planets in the solar system move around.
Ptolemy established the geocentric concept, which states that the earth is at the center of the solar system and that other celestial bodies, including planets and stars, rotate around it.
Nicolas Copernicus invalidated this model system by explaining that the sun is at the center of the solar system and that the planets rotate around it.
The first organisms to occupy an area after a prairie fire are known as.
Answer:
pioneer species
Explanation:
Counterclockwise rotation of the flagellum causes a bacterial cell to swim or ______ towards a stimulus, interrupted by clockwise rotation in which the cell ______ and changes its course.
Counterclockwise rotation of the flagellum causes a bacterial cell to swim or run towards a stimulus, interrupted by clockwise rotation in which the cell tumbles and changes its course.
How does a bacterium respond to stimuli?A bacterium is a unicellular organism that posseses a structure called flagellum.
Flagellum in bacteria is a long, whiplike proteinaceous appendage, used for locomotion.
However, a counterclockwise rotation of the flagellum causes a bacterial cell to swim or run towards stimulus. This rotation is interrupted by a clockwise rotation of the flagellum that causes the bacterium to tumble.
Learn more about flagellum at: https://brainly.com/question/17184078
#SPJ4
You’ve found some fossil bones while digging in your backyard. could they be dinosaur bones? using carbon dating, you determine that 3% of the original radioactive carbon-14 is still radioactive. (the rest has decayed into nitrogen-14.) how many half-life cycles has it gone through? approximately half-life cycles.
Since 3% of the original radioactive carbon-14 is still radioactive, the carbon-14 radioisotope has undergone five half-lives.
What is Half-Life?Half-life of a substance is the time it takes for half the original amount of the substance to decay.
Radioactive elements decay spontaneously according to their half-lives.
Since 3% of the original radioactive carbon-14 is still radioactive, the number of half-lives undergone is determined as follows:
After one Half-Life, 50% remains
After two half-lives, 25% remains
After three half-lives, 12.5% remains
After four half-lives, 6. 25% remains
After five half-lives, 3.125 % remains.
Therefore, the carbon-14 radioisotope has undergone five half-lives.
Learn more about Half-Life at: https://brainly.com/question/26689704
#SPJ4
Answer: 5 Half Life Cycles
Explanation: edg 2023
PLEASE HELP
i have no more than a month left of school and im not trying to procrastinate this even more. you would be saving a life smh
Answer:
he population in Trait A has a higher percentage of plants
A fossil of a new primate species is discovered. scientists find evidence that members of this species traveled long distances without putting their hands down on the ground and used tools. which trait would the fossil most likely have? a foramen magnum at the back of the skull a curve in the lumbar region of the spine a femur angled outward an opposable big toe
The trait would the fossil most likely have is a curve in the lumber region of the spine.
What is the concept of fossil?Fossils are remains or traces of animals and plants preserved in rocks. Remains are parts of an animal (eg bones, teeth, scales) or plant (eg trunks) and traces are evidence of its existence or activities (eg footprints).
From the fossils it is possible to see the evolutions that the animals suffered in this case it was a curve in the lumber region of the spine.
See more about fossil at brainly.com/question/6867325
#SPJ4
Answer:
b. a curve in the lumbar region of the spine
Explanation:
Homogeneous means?
A. The components of the mixture form a single phase
B. The particles of a solution are in harmony with each other
C. The solution can change phases
Answer:
B.
Explanation:
wont let me say the word but it means to be the same as something according to gogle. SO it would make sense that if something was the same as another for them to be in harmony.
100 points hurry
Explain at least three pro’s and three cons of invasive species . Three reasons why it’s a good solution and three reasons why it’s not, or what challenges it faces.
Who are the stakeholders (people who would care about this issue)? Include those who are supportive of the solution and how it would benefit the environment, and people who would be opposed to the solution (usually they would lose money somehow). If there are no people opposed, state that.
The methods for positively identifying a species and its life cycle stage have not fundamentally changed in the past 200 years. True False
Answer:
False
Explanation:
when does the embryo form?
A. At the end of the third trimester
B. A few days after fertilization
C. In the second trimester
D. At the end of the first trimester
what is the difference between an extinct species and a mass extinction?
1. How do you think your organs work together to digest food?
2. What other inventions do you think are based on the functions of the digestive system?
3. How might you be able to tell that enzymes are working in your body?
4. How do different types of food change the number of digestive enzymes present in your body?
Answer:
1. Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ.
2.The SmartPill is an ingested, wireless device for measuring the health of the digestive system. As it passes through the digestive tract, the capsule transmits data to a receiver, which is later returned to the doctor and the information downloaded onto a laptop computer.
3. When its not working many of the uncomfortable reactions such as an upset stomach, allergy-like symptoms or irritability are actually signs that the enzymes are working. The body is cleaning itself out and the healing process is starting.
4.One of the main reasons for reduced output of digestive enzymes is poor exocrine pancreatic function. The causes of Exocrine Pancreatic Insufficiency (EPI) are very diverse ranging from: Problems with the endocrine part of the pancreas such as insulin dysregulation from diet high in refined carbohydrates and diabetes.
Explanation:
has a stronger affinity for hemoglobin than oxygen has
Answer:
CO
Explanation:
Carbon monoxide binds with Hb with 240 times the affinity of O2
hheelpp the test is happennig noww
Answer:
Option A
Explanation:
Xylem is made of dead cells that transport water. Stomata are pores in leaves that help CO2 enter the plant. Chlorophyll absorbs sunlight (it cannot accept green light which is why leaves are green, cuz they reflect the green wavelenght)
What would have happened if Went had carried out the experiment described in the second half of the animation using a block of impermeable plastic instead of permeable gelatin?
In the presence of an impermeable plastic, the shoot will grow in a curved manner towards the source of sunlight.
How do plants grow?One of the important things that is required for the effective growth of plants is light. In the presence of light, plants tend to grow upright without bending.
However, in the presence of an impermeable plastic, the shoot will grow in a curved manner towards the source of sunlight.
Learn more about light and plant growth:https://brainly.com/question/13048818
#SPJ1
How are green algae related to land plants? (Select all that apply.)
□ both have chlorophyll
□ both have a cell wall
□ both have chloroplasts
□ both have a nucleus
Answer: Both have chlorophyll and both have chloroplasts
Hope this helps you!!!
Answer:
Both have chlorophyll
Both have a cell wall
Both have chloroplasts
Both have a nucleus
Explanation:
(*) Sorry for my late answer but I hope this helps others that are looking for this.
100% in the test ;)
