Cierta especie de plantas varía en la forma de los bordes de sus hojas. Algunas de las plantas tienen hojas con bordes ondulados y algunas plantas tienen hojas con bordes rectos. En esta especie de plantas, un gen controla el rasgo de la forma del borde de la hoja. L representa el alelo dominante y I representa el alelo recesivo. Dos plantas con hojas de bordes ondulados se cruzan una con otra, produciendo 421 plantas. De las cuales, 298 plantas tienen hojas con bordes ondulados y 123 tienen hojas con bordes rectos. 3 ¿Cuáles son los fenotipos de las plantas madre en este cruce? А Lly II B Lly Ll C LL y ll DL y Ll
Answer:
A. Lly
Explanation:
Creo que esto es correcto, pero No sé si esto es correcto
Sickle cell anaemia is an inherited autosomal recessive
condition caused by a mutation in the haemoglobin
subunit beta (HBB) gene. A male and female who are
phenotypically normal, discover through genetic testing
that they are both carriers of a HBB mutant allele. What is
the probability that their first child will be biologically
female and phenotypically normal?
Answer:
1/8 (12.5%)
Explanation:
An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene locus to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).
- Parental cross for sickle cell anaemia trait = Hh x Hh >>
- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>
- Sex proportion of sickle cell anaemia individuals = 1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)
which occurs during transition ?
Which RNA base pairs with the adenine in DNA?
Thymine
guanine
cytosine
uracil
Answer:
uracil
Explain: it pairs up with the dna
A 10 N force and a 15 N force are acting on a box in opposite directions what edition force must be added to produce equilibrium
Answer:
5N of force acting the same way as the 10N of force to make it 15N of force
Explanation:
What happens to a population when immigration increases?
A. The population size usually increases.
B. The emigration rate usually increases.
O C. The emigration rate usually decreases.
O D. The population size usually decreases.
Answer:d
Explanation:
When immigration increases, the population size usually increases, as shown in Option A, as immigration is the movement of individuals into a population from another population.
What is immigration?Immigration is the movement of individuals from one population to another. It involves the addition of new individuals to the population, which can increase its size. When more individuals enter a population, they bring with them new genes and genetic diversity, which can enhance the adaptive potential of the population. This can help the population better withstand environmental challenges and increase their chances of survival, but increased immigration can also have negative consequences. For example, it can lead to competition for resources among individuals, which can lead to a decrease in the quality and availability of resources for the population as a whole.
Hence, when immigration increases, the population size usually increases, as shown in Option A.
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Plz do 6 and 9❤️❤️❤️❤️❤️ Plz
Answer:
no
Explanation:
Explain the role of PERISTALSIS during your food’s time in the esophagus as it travels to the stomach.
Peristalsis helps in storing food, breaking down food down and mixing it with juices secreted by stomach lining. Peristalsis in stomach helps in partial digestion of food called chyme.
Which of the following is formed last in daughter cells when plant cells divide?
The nucleus
The nuclear envelope
The cell membrane
The cell wall
Answer:
The cell wall is formed last
Answer:
the nucleus is the last thing formed
4. Many commercial grow lights deliver light mostly in the yellow/red part of the spectrum, along with smaller portions of all other visible light. Why would a grow light such as this promote plant growth and reproduction (flowering and fruiting) or is this a con job?
Answer and Explanation:
These lights can, in fact, promote the growth and reproduction of plants.
This is because growth, chlorophyll production, flowering and fruiting only occur if the plant is exposed to a band of light with 640-720 nm. Plants receive this band of light naturally through the sun, but when solar energy is not available it is possible to use cultivation lamps that emit this type of light band, which corresponds to the yellow/red spectra.
the chromosomal hereditary material is packaged in this organelle in eukaryotic cells but not in prokaryoitc cells. This organelle is called
Answer:
Nucleus
Explanation:
The correct answer would be the nucleus.
The nucleus is a double membrane organelle that is found in all eukaryotic cells but not in prokaryotic cells. It contains the chromosomal hereditary material of eukaryotic cells and serves as the control center of the cell where other cellular activities are dictated.
The chromosomal hereditary materials of prokaryotic cells lie freely within the cytoplasm unlike what is obtainable in eukaryotic cells. The materials are package in a condensed fashion within the eukaryotic nucleus to form a structure known as chromatin. During cell division, the chromatin decondenses and become visible under the microscope as chromosomes.
help..........................
Answer:
d
Explanation:
Choose the statement about renewable and nonrenewable energy sources that is NOT true.
a. Renewable energy creates little or no waste and has few negative environmental impacts.
b. There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels.
c. Most nonrenewable energy sources can be renewed, but it takes thousands to millions of years for them to form.
d. New technologies promise future increases in the use of renewable energy sources.
Answer:
b. There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels.
Explanation:
Fossil fuels have had tremendous negative impacts on the environment and humans as well. For that reason, the use of renewable sources of energy, such as hydropower and biomass, have become increasingly popular over the last few decades.
Within our lives, or possibly within many, many lifetimes, the sources of non-renewable energy will run out or cease to exist. The three main fossil fuels that are used as non-renewable energy sources are coal, oil, and natural gas. Carbon is the main element in fossil fuels. Thus, option B is correct.
What best define about nonrenewable energy sources?Fossil fuels have had a terrible impact on both the environment and people. Because of this, the usage of renewable energy sources, such as biomass and hydropower, has risen in popularity over the past few decades.
A natural resource is classified as non-renewable (also known as finite) if it cannot be easily replenished by natural processes at a rate fast enough to keep up with use. Carbon-based fossil fuels are one illustration. The original biological substance can change into a fuel like gas or oil thanks to heat and pressure.
Therefore, There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels.
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Eubacteria and archaebacteria differ in the process of protein synthesis. What is the difference?
A.) phenylalanine is added as the first amino acid during protein synthesis
B.) Methionine is added as the first amino acid during protein synthesis
C.) Formyl-methionine is added as the first amino acid during protein synthesis
D.) Glutamic acid is added as the first amino acid during protein synthesis
Answer:
A
Explanation:
The main difference between Archaebacteria and Eubacteria is? Hint: Archaebacteria are called ancient bacteria whereas eubacteria are called true bacteria. Unlike eubacteria, archaebacteria can survive in extreme conditions
The RNA product of the genetic code above has the sequence ____________ . It binds to the small subunit of the ____________ . It is joined by the large subunit, completing the initiation stage of the process of ____________ .
The Genetic code was not given, however, The genetic code associated with this question is as follows:
ACCGCTTGCCGCAAT
Answer:
The correct answer is - UGGCGAACGGCGUUA, ribosome, translation.
Explanation:
The translation is the second process of protein synthesis followed by transcription. Transcription produces mRNA sequence from DNA gene sequence and bring it to the cytoplasm for translation to take place.
The gene segment ACCGCTTGCCGCAAT is encoded to mRNA sequence by converting bases to their complementary bases A to U and C to G and G to C and T to A so the new code will be - UGGACGAACGGUGUUA.
This mRNA binds with a small subunit of ribosomes and then a large subunit of ribosome joined and completes the first stage initiation of the translation.
What two genes a person actually has in their DNA; i.e. DD, Dd, or dd
A.genotype
B.phenotype
C.dominant
D.recessive
State your claim. Make sure your claim fully explains how infrared photography can be used to visualize temperature differences
Answer:
Infrared thermography using an infrared camera is the most popular technique for detecting surface temperature without contact. ... Passive thermography measures relevant temperature differences of the surface by heating it with lamps (heat sources).
which statement regarding these methods of reproduction is correct?
Answer:
put the picture of the question
Explanation:
i cant help you if you dont
Answer this question please
Answer:
Any animal that is not a equine, tapir, or rhino.
Explanation:
There are 3 extant families of odd toed ungulates:
Equidae (horses, donkeys, zebras etc)Rhinocerotidae (rhinoceroses) Tapiridae (tapirs).If the animal isn't in one of those families, it isn't an odd toed ungulate.
What things do plants use to get food matter?
HELP ASAP
Answer:
water and sunlight (for sure)
Answer:
Plants are called producers because they make their own food
Explanation:
Plants use minerals and water from the ground and their leaves absorb Carbon Dioxide (CO2) from the air.They convert these into food by using sunlight
Hope this Helped :)
What are the early signs of osteoarthritis?
Which statement best describes how molecules interact with systems in the
human body
A. Carbon atoms combine with water to form the glucose molecules
that cells use to get the energy they need.
B. Oxygen molecules in the blood enter the cells of all body systems,
and the cells use them to get energy
C. Carbon dioxide molecules leave the body in exhaled air, and
oxygen molecules enter the body in inhaled air.
D. Oxygen molecules help carry other molecules in the blood as it
flows through the body.
Answer:
b
Explanation:
Snake venom contains a mixture of enzymes, which include phospholipase that break down cell membranes, proteinases that destroy proteins, as well as amino acid oxidases and nucleotidases that break down the monomers for protein and DNA synthesis, which is why they can be so deadly. If you were bitten by a venomous snake you may be treated with an antivenom. In addition to antibodies that help your immune system recognize and fight the foreign molecules, what else does the antivenom most likely contain
Answer:
The correct answer is - Venom enzyme inhibitors.
Explanation:
The snake venoms are the complex mixtures of phospholipase A2s, disintegrins, serine proteases, C-lectins, and metalloproteases, and others. The snake venom phospholipase A2s (svPLA2s) enzymes found in most of the families of venomous snakes that cause anticoagulant effects, cardiotoxicity, neurotoxicity, and cytotoxicity, and other effects.
In antivenom, there are Venom enzyme inhibitors other than antibodies that help in neutralizing these enzymes by weakening or inhibiting these toxic actions.
What types of materials could be broken dowr in a compost pile? A all recyclable materials B biodegradable materials C all materials that can be incinerated D glass, metal, and other raw materials
Answer:
All biodegradeable materials.
How Many Years Ago Was Parachute Invented?????
If YOU WANT BRAINLEST THEN ASAP
Answer: 4,000 years ago
The parachute was invented 4,000 years ago, when Chinese observers noticed that air resistance slowed free-falls. Legend states that a safe jump was made from a granary using two bamboo hats. In the 800s, Abbas Ibn "Armen" Firnas jumped off a tower in Cordova (Iberian peninsula) using a large cloak like a wing.
When a bat is hibernating, how fast does its heart pump?
Answer:
20 beats per minute
Explanation:
Answer:20 beats
Explanation:bat's heart rate slows to only 20 heartbeats per minute.
which player will generate the most FORCE??!!!
Answer:
Nick Boyle as 270 pounds is higher than others!
Explanation:
Answer:
Logan Thomas
Explanation:
Explain how an HAB outbreak can have a devastating economic
impact
Result of mechanical weathering or chemical weathering
Answer:
yea the above one is correct
difference between trychocysts and nematocysts
Answer:
trichocyst is a threadlike organ in certain protozoans that can be discharged suddenly in order to grasp or sting while nematocyst is (biology) a capsule, in certain cnidarians, containing a barbed, threadlike tube that delivers a paralyzing sting.
Explanation:
