Mendel crossed wrinkle-seeded (rr) plants with pure round-seeded plants (RR). 50% percentage of the resulting generation had wrinkled seeds.
What is Mendel's cross?Mendel first experimented with just one characteristic of a pea plant at a time. He began with flower color and cross-pollinated purple- and white-flowered parent plants. He was surprised by the results. This led to his law of segregation.
A dihybrid cross is a breeding experiment between two organisms which are identical hybrids for two traits. In other words, a dihybrid cross is a cross between two organisms, with both being heterozygous for two different traits.
For monohybrid cross, Mendel began with a pair of pea plants with two contrasting traits i.e., one tall and another dwarf. The cross-pollination of tall and dwarf plants resulted in tall plants. All the hybrid plants were tall.
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DNA evidence analysis is an imperfect science. Provide two reasons why this may be the case.
For my Biomedical Science Class
Answer:
Not all DNA that was found at the scene has to be related to the scene.
Explanation:
Just because DNA was found at the scene, that doesn't mean that the person there is actually guilty. For example, in a case where person B is guilty, a strand of hair from Person A could be carried over to another scene on Persons B's clothing.
Answer:
Because DNA is more reliable than other forensics, scientists have shrugged off suggestions that it could fall victim to the vagaries of bias. But Dror noted that much DNA analysis involves interpretation. With interpretation comes subjectivity, and with subjectivity can come error. Only one-tenth of 1 percent of human DNA differs from one individual to the next and, although estimates vary, studies suggest that forensic DNA analysis is roughly 95 percent accurate.
Explanation: Hope this helps
describe some of destructive action of microbes
Answer:
A microbe is a small living thing too tiny to be seen by the naked eye and includes bacteria, fungi and viruses. Among their destructive actions is causing diseases in human beings and their livestock or plants, destruction of food by causing decomposition which might lead to hunger and other related calamities. Despite this destructive consequences, microbes are also known to have advantageous actions like helping in sewerage treatment, microbes found in the gastro-intestinal tract help in maintaining a good environment for digestion to take place. Microbes also help in ecological balance by causing decomposition of dead matter hence conserve the environment.
Explanation:
Answer:
see the attached photo
what is diamond ?how it formed?why it is so precious?
Answer:
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structuctre. It is formed in the mantle and delivered to the surface by deep source volcanic eruption.
Explanation:
it have exquisite beauty, inner fire, and unique physical quantity have made them so precious.
Eukaryotic cells are somatic non-sex cells true or false
Answer: true
Explanation:
why is cell division important for one-celled organisms and multi-celled organisms
Answer:
so they can reproduce
Explanation:
Which of these statements are true about physical medicine? Check all of the boxes that apply.
Physical medicine treats heart disease.
A common subspecialty of physical medicine is geriatric care.
Physiatrists operate on joints such as the knee and ankle.
Physiatrists recommend and fit leg braces.
Answer:
Physiatrists operate on joints such as the knee and ankle.
A common subspecialty of physical medicine is geriatric care.
Physiatrists recommend and fit leg braces.
Explanation:
Physiatrists treat a variety of medical conditions that affecting the brain, spinal cord, nerves, bones, joints, ligaments, muscles, and tendons etc. Physiatrists main aims to enhance and restore the functional ability of muscles and organs of those people who passes through physical impairments or disabilities. With this physical medicine people live a long and healthy life.
Answer:
2 and 4
Explanation:
Got it right edg
Which body made up of water is part of the cryosphere?
O A. A glacier
O B. A raindrop
C. A river
D. A lake
Answer:
A
Explanation:
In a chemical analysis of a sample of animal tissue, which element would most likely be found in the smallest quantity?
Answer:
Iodine
Explanation:
Iodine is needed by animals because the body's metabolic rate is controlled by the action of an iodine hormone, called thyroxine, which is secreted by the thyroid gland in the neck.
If the animal fails to supply enough iodine through food to be able to make a normal amount of this compound, then the thyroid gland enlarges or expands trying to create enough, resulting in a common type of goiter.
What carries digested food to the cells of an animal?
A. plasma
B. enzymes
C. red blood cells
D. white blood cells
Answer:
B. Enzymes
Explanation:
Animals feed by secreting enzymes through the cell membrane onto the food. The enzymes break the food into molecules small enough to be taken pass through the cell membrane into the cell.
Brackish water can be found in which of the following ecosystems?
a. coral reefs
b. mangrove swamps
c. polar regions
d. deep sea
Answer:
The answer would be B. Mangrove Swamps
Explanation:
Brackish water is when freshwater meets with sewer water or salty water.
Brackish water can be found in the mangrove swamps ecosystem.
They are marked by halophytic trees, shrubs and different flora thriving in saline to saline tidal waters.
What is the mangrove swamps ecosystem?
Mangrove forests, also named mangrove swamps, mangrove shrubs or trees, are formative wetlands that appear inshore intertidal zones. Mangrove forests grow mainly in equatorial and subtropical spaces because mangrove trees cannot resist freezing .
It is distinguished by such qualities as a damp climate, saline habitat, waterlogged soil or sludgy soil.
Thus, Brackish water can be found in the mangrove swamps ecosystem.
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The plates include the lithosphere under the oceans true or false
Answer:
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. So i think its True
Viscosity is a measure of a fluid's resistance to
flow
A: True
B: False
Answer:
Viscosity is a measure of a fluid's resistence to flow is true i believe
Viscosity is a measure of fluids' resistance to flow a correct statement. So the correct option is True.
What is viscosity?The measurement of a fluid's resistance to its own flow and any objects that may be inserted in it is called viscosity.
Viscosity is given by the symbol η (eta) and is defined as the ratio of shearing stress (F/A) and the velocity gradient of the flow of a liquid (dvx/ dy).
Velocity is also defined in the form of Newton’s equation which states that the shear force resulting is directly proportional to the applied force and it is inversely proportional to the viscosity.
The SI unit for velocity is Pascal. Second (Pa S).
The other form of viscosity is called kinetic viscosity which is the ratio of a fluid’s viscosity to its density. It is given by ν (nu). It is a measure of the resistance of a liquid against flowing when it is under the influence of gravity. The SI unit of kinetic viscosity is a square meter per second.
Therefore, the above statement is true.
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An object has a mass of 5 kg. What force is needed to accelerate it at 6 m/s2? (Formula: F=ma)
Group of answer choices
A. 11 N
B. 30 N
C. 1.2 N
D. ,83 N
Answer:
A
Explanation:
if you calculate 6 m/s2 and 5 kg you get 10N
but you have to round and you get 11n
Answer: 30
Explanation:
5 x 6 = 30
Scientists discovered that the inner core of Earth is a solid. Explain what evidence supports this thinking. Be sure to include how pressure, temperature, and density play a role. (4 points)
Answer:
The inner core is solid because the inner core consists of a lot of pressure and high temperatures. And the more pressure and high temperatures the more dense the substance gets.
Explanation:
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what are the functions of the White blood cells in the body
Answer:
2 protect ur body
Explanation:
Answer:
2 protect your body from deseses
At what stage of the cycle does the cell copy its DNA?
Answer:
S-Phase
Explanation:
During the S-Phase, the cell replicates its DNA. Interphase is then followed by Mitosis. Mitosis is when the cell separates its two sets of DNA and divides it into two more cells.
The music and pictures connected with a story can also show blas.
A
True
B.
False
Answer:
A
Explanation:
I took the question in a online quiz
28) 6CO2 + 6H20 + (energy) → C6H12O6 + 602
Where does the energy come from in the reactants side of the chemical equation?
Plz help I have 10 mins left
Answer:The energy change in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy.
Explanation:
Answer: The energy in this reaction (photosynthesis) comes from light.
Sorry about cutting it close, hope this helps.
The bacteria in a colony are unable to perform conjugation. How would this hurt the bacterial colony's chance for survival?
A. The bacteria would lose all their RNA.
B. The colony could not produce bacteriophages.
C. The colony would have less genetic variation
D. The bacteria in the colony could not reproduce.
The colony would have less genetic variation. The Bacteria in the colony would be too genetically similar
The bacteria living in a colony is aunable to perform the conjugation as they have less chances of survivial due to the colony is less genetically divere. Thus the option C is correct.
What is conjugation ?This is a process wherein organism of the same species like the bacteria, exchange the nuclear mating materials during a temporary union and are capable of transferring one consent form from one organism to another. Thus the lack of genetic variation will lead to fewer chances of species survival.
Find out more information about conjugation.
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What is crossing over in meiosis and how does it ensure genetic diversity?
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. ... It is obviously another source of genetic variation in offspring.
Explanation:
i looked it up on google
Science? Study island
If more carbon dioxide was made
available to a plant, what would be the
effect on the rate of photosynthesis?
A. The rate would be unaffected.
B. The rate would increase.
C. The rate would decrease.
Answer:
B. The rate would increase.
Explanation:
Increased carbon dioxide concentration increases the rate at which carbon is absorbed into the carbohydrate in an independent reaction, so the level of photosynthesis usually increases.
hope it helps!
Which of the following is NOT true of plants?
A
Plants help remove some toxins from the air.
B
Some plants pollinate with help from the wind.
С
Plants remove carbon dioxide and release oxygen into the air.
D
Plants remove oxygen and release carbon dioxide into the air.
Answer:
D
Explanation:
Answer:
D
Explanation:
I need help ASAP!!!! Please help please and thank you
Answer:
C G G A C A C G A T C T A C T
U G G A U A U G A G U G A U G
Explanation:
DNA mRNA
C = U
G = G
A = A
T = G
I'm not sure about the amino acid part.
The phylum Nematoda includes the flatworms.
a. true
b. false
Answer:
False
Explanation:
Which is NOT a function of lipids?
1.Absorption of Vitamins
2.Genetic Storage
3.Insulation/Cushioning
4.Energy
Lipids don't store genetic informations so the answer is 2
they absorb liposoluble vitamins they offer insulation/cushioning they store energy
which part of a plant is necessary for photosynthesis
Answer:
Chloroplasts
Explanation:
Answer:
chloroplasts........
WILL GOVE BRAINLY!!
Which product of respiration is considered waste material and leaves the alveoli?
A. oxygen
B. water
C. carbon dioxide
D. carbon monoxide
Answer:
C
Explanation:
Carbon dioxide
Pls help im being timed) compare the original DNA
Answer:
A - substitution
B - insertion
C - deletion
Explanation:
