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
list some things you can do to eliminate deforestation (cutting down forests)
Answer:
1.Plant a tree.
2.Use less paper.
3.Recycle paper and cardboard.
4.Use recycled products.
5.Buy only sustainable wood products.
6.Don't buy products containing palm oil.
7.Reduce meat consumption.
8.Do not burn firewood excessively.
Explanation:
Hope this helps :)
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)
¿Que científico investigó sobre la conductividad de las disoluciones acuosas de diferentes
sustancias ?
Answer:
Stephen Gray nacido en diciembre de 1666, Canterbury 7 de febrero de 1736, Londres fue un físico y científico natural inglés, conocido principalmente por sus aportaciones en el campo de la conductividad eléctrica.
Can someone make me report for bees and flowers I know what to do but don't know how to make it into 300 words
Choose a symbiotic relationship from the list below. research the relationship and write a 300 word report that includes the benefits of the relationship for either member, the harm done by the relationship and how this relationship has evolved. if the relationship was suddenly to stop what would happen to each member of the relationship? 1)bees and flowers
2)coral and algae (dinoflagellates)
3)remoras and sharks
4)microorganisms and human
5)intestines ticks and deer
Answer:
Bees and flowering plants have a mutualistic relationship where both species benefit.
Explanation:
Bees play a keystone role in the agricultural production and the beauty of our world through the pollination of fruits, vegetables, nuts, and flowers. The disruption of natural habitats leading to lack of "bee flowers,"
Once they reach adulthood, most living things take care of themselves and sometimes their offspring. However, certain plants and animals have developed helpful relationships with living things outside their own species. Scientists call such relationships "mutualistic relationships" because both organisms benefit from the arrangement. One of the most famous mutualistic relationships in nature is the relationship between bees and flowering plants. This relationship allows bees to feed their colonies and plants to reproduce
Bees and flowering plants have a mutualistic relationship where both species benefit. Flowers provide bees with nectar and pollen, which worker bees collect to feed their entire colonies. Bees provide flowers with the means to reproduce, by spreading pollen from flower to flower in a process called pollination. Without pollination, plants cannot create seeds.
How Bees Benefit From Flowers
Flowers benefit bees by providing them with all the food their colonies need, to survive. With the exception of a few species, bees are social insects that live in colonies of between 10,000 and 60,000 individuals. How many bees live in a single colony depends on factors such as the bees' species, the weather in their environment and how much food is available.
Bees feed on the nectar and pollen of flowers. Nectar is a sweet liquid substance that flowers produce specifically to attract bees, birds and other animals. Pollen is a powder that contains the male genetic material of flowering plants. Worker bees (bees whose job is to collect food for the colony) land on flowers and drink their nectar. This nectar is stored in a pouch-like internal structure called the crop. In the process of doing this, bees become covered in pollen. The pollen sticks to the bee's hairy legs and body. Some bee species even have sack-like structures on their legs for collecting pollen, called pollen baskets.
After collecting nectar and pollen from many different flowers, bees fly back to their colonies. They regurgitate nectar, mixed with enzymes, and expose the mixture to the air for several days, creating honey. This honey is used to feed the colony. Pollen is mixed with nectar to form a protein-rich substance called beebread. Beebread is primarily used to feed young developing bees, called larvae.
How Flowers Benefit From Bees
Bees benefit flowering plants by helping the plants reproduce, via pollination. Because plants cannot seek out mates the way animals do, they must rely on outside agents, called vectors, to move their genetic material from one plant to another. Such vectors include bees, certain birds and wind.
Flowering plants carry the male portion of their genetic material in their pollen. When bees fly from one flower to another, pollen is spread from plant to plant. If pollen from one flower is able to reach another flower of the same species, then that plant will be able to form seeds and reproduce.
Without bees, pollination and reproduction would be practically impossible for some plant species. This makes bees a vital part of every ecosystem they inhabit. Humans also greatly benefit from the pollination bees provide. Bees' work allows humans to enjoy fruits, vegetables and other plant products that would not be available otherwise.
Helping Bees
Bee flowers
You can help bees in four ways: plant bee flowers everywhere, provide nesting habitat, keep bee-flowers clean, and support our effrects to keeping
Where is primary succession most likely to occur?
A. In the path of a hurricane
B. Where a forest has burned
O c. In the path of a flood
O D. Where lava has cooled
Answer:
"D" because primary succession occurs after glacial retreat or a volcanic eruptions. These events can create or uncover rocks which are pioneer species.
What are two ways in which plant eating animals such as cow depend on water.
What kind of fossil is a wooly mammoth found frozen in arctic ice?
a.Cast fossil b.Mold fossil c.Preserved fossil d.Trace fossil
Answer:
cast fossil
Explanation:
The excretions of living organisms are best categorized as?
Answer:
The excretions of living organisms are best categorized as biotic factor in the environment.
How do genes determine the traits of an organism?
Answer:
the Gene's make up every distinct feature about a creature like its hair color its ear size its tail size its teeth and especially its gender
Positive feedback
A)bring the change back to normal
B)brings the change further away from the normal
Answer:
B)
Explanation:
"Positive feedback encourages and intensifies a change in the body's physiological condition, driving it farther out if the normal range."
I need help with this question
Answer:
Plz mark brainliest ;)
Explanation:
Lysosomes break down macromolecules into their constituent parts, which are then recycled. These membrane-bound organelles contain a variety of enzymes called hydrolases that can digest proteins, nucleic acids, lipids, and complex sugars.
Which statement best compares momentum and kinetic energy
Answer:
Momentum is a vector quantity and kinetic energy is a scalar quantity.
Explanation:
which player will generate the most FORCE??!!!
Answer:
Nick Boyle as 270 pounds is higher than others!
Explanation:
Answer:
Logan Thomas
Explanation:
which occurs during transition ?
The diagram represents a process used to modify bacterial cells.
Bacterial DNA х Y o Foreign DNA In the diagram, arrows labeled X and Y represent the use of
(1) clones (2) receptors (4) enzymes (3) genes
Answer:
send a pic of the diagram
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 :)
Which is a reason why wetlands are important?
O They move water to higher ground during flooding.
O They filter pollutants out of water.
O They are estuaries.
O They provide minerals.
Answer:
They are estuaries
Explanation:
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:
. In a replicating DNA molecule, the region in which parental strands are separating and new strands are being synthesized is called a(n)
Answer:
replication fork
Explanation:
The deoxyribonucleic acid (DNA) is a double-stranded helix composed of two long chains of nucleotides. The replication fork is a Y-shaped structure by which both DNA strands are separated in order to be replicated during cell division. In a cell, DNA replication starts at specific sites in the genome referred to as 'origins of replication'. A replication fork is generated by helicase enzymes that unwind and separate the DNA double helix strands by interrupting hydrogen bonds that hold the two DNA strands together. These DNA strands act as templates for the leading and lagging DNA strands. During DNA replication, the leading strand is synthesized continuously in the same direction as the replication fork, while the lagging DNA strand is synthesized in a direction away from the replication fork, in small pieces of DNA called Okazaki fragments.
What two genes a person actually has in their DNA; i.e. DD, Dd, or dd
A.genotype
B.phenotype
C.dominant
D.recessive
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 are these chromosomes consideredas?
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body.
Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.Which of the following can have an affect on rate and/or depth of respiration? Select all that apply.
Answer:
Chemical- carbon dioxide, hydrogen ions and oxygen levels are the most important factors that regulate respiration.
Answer:Chemical- carbon dioxide, hydrogen ions and oxygen levels are the most important factors that regulate respiration. ... If CO2 levels increase, the respiratory center( medulla and pons) is stimulated to increase the rate and depth of breathing.
Explanation:
The photos below show plant cells that are specialized for performing
photosynthesis.
Which part of these plant cells carries out this function?
A. Cell wall
B. Chloroplast
C. Cell membrane
D. Cytoplasm
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.
Acid precipitation may change lakes by a. making phosphorus more available to plants, thereby increasing productivity. b. making nitrogen more available to plants, thereby increasing productivity. increasing populations of nitrogen-fixing microorganisms. . accelerating the carbon cycle within lakes. causing the local extinction of species that cannot tolerate
Answer:
causing the local extinction of species that cannot tolerate.
Explanation:
Acid precipitation may change lakes by causing the extinction of local species that cannot tolerate the acidity of the water. The acid precipitation damaged the skin of the aquatic organism as well as internal body structure of various organisms. Acidic nature of water is not good for all organisms except some resistance organisms due to their adaptability so we can conclude that extinction of species occur that has no resistance.
What happens in crossing over?
A. Chromosomes condense
B. Homologous chromosomes swap DNA
C.Homologous chromosomes separate
D.Cells divide into 2 new cells.
Answer:
B
Explanation:
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity. During crossing over, part of one chromosome is exchanged with another. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
Answer:
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity.
Explanation:
During crossing over, part of one chromosome is exchanged with another. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
Name the TWO major blood vessels that carry blood to and from the lungs.
Answer: The pulmonary artery (carries blood from the heart to the lungs), and the pulmonary vein (carries blood from the lungs to the heart).
Answer:
Veins carry to the heart, and arteries carry blood from/away from the heart.
Explanation:
The pulmonary artery carries (oxygenated/oxygen rich) blood from the heart to the lungs, while pulmonary veins carry (deoxygenated/oxygen poor) blood to the heart, from the lungs.
Result of mechanical weathering or chemical weathering
Answer:
yea the above one is correct
