Answer:
La afirmación es correcta, el hijo con el grupo sanguíneo AB no es suyo.
Explanation:
Siendo el padre del grupo sanguíneo O, sabemos que el gen es recesivo por lo que la codificación para dicho gen, a su vez es homocigota.
Dicho esto el cromosoma Y (u X), del padre aporta O a sus hijos.
Siendo la madre del grupo sanguíneo B, podría ser homocigota dominante, aportando únicamente B, pero cómo B domina a O, nunca podría haber un hijo con grupo sanguíneo O. En conclusión la madre es heterocigota dominate, donde el gen codifica para O y para B. Finalmente podrán tener dos hijos:
- Un hijo que será O, ya que los cromosomas de madre y padre aportarán el O por igual
- Y el otro hijo será B, ya que el padre aportará O, pero el gen B de la madre es el dominante.
No hay forma que hayan tenido un hijo con grupo sanguíneo AB ya que el gen para grupo A no está en ningún padre
Why don’t populations of organisms that reproduce asexually have the same genetic variation as populations that reproduce sexually
Answer:
Asexual reproducing populations only get their genetics from a single parent, meaning that they all have the exact same DNA/RNA, while sexually reproducing populations have two parents meaning they get genetic code from two parents instead of one, therefore they have more variance. This variance is also the reason sexually reproducing populations are usually harder to wipe out due to variance.
please help me with this I need correct answer
Answer:
Gamma rays
X-rays
Ultraviolet
Visible Light
Infrared
Microwaves
Radio waves
Answer: from shortest wave length to longest it would be
gamma
x-ray
ultraviolet
visible light
infrared
microwave
radiowave
Explanation:
from the longest to shortest it will be :
Radio wave , Microwave, infrared , visible light , ultraviolet , x-ray , gamma
and you can menomeic it as : "Rabbits Mate In Very Unusual eXpensive Gardens "
Which of the following aquatic environments would not freeze in winter?
Answer:
summer and springtsdfggu
2 Points
Which would be an adaptation in a very cold place, but not in a rainforest?
A. Special veins that keep you cool
B. Leaves for flying faster
C. Strong teeth for fighting competitors
D. Fur that blends in with snow
Answer: D
Explanation:
The adaptation that would be in a very cold place, but not in a rainforest, is fur that blends in with snow. The correct option is D.
What is adaptation?
Adaptation is a long-term or short-term change or modification of the body to survive and match the environmental conditions. Adaptation is necessary for every organism to increase its population.
Adaptation is categorized into different types according to the places where animals and plants live. Examples of adaptation are desert plants having thick leaves or no leaves to save water, and snow animals being white to blend in.
The animals living in very cold regions, like the arctic and Antarctica, have white fur to blend with the environment and save from predators.
Thus, the correct option is D. Fur, which blends in with snow.
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why most vaccines have to be given by injection?
A photopsin is a protein
A. of a photopigment within cone photoreceptors.
B. of a photopigment within rod photoreceptors.
C. that is derived from Vitamin E.
D. that allows ions to flow into rod and cone photoreceptors
Answer:
A
Explanation:
protein pigment for vision in cone
What can a person do to limit exposure to X-rays?
Distance and shielding can protect a person from X Ray radiation. An example could be how X Ray technicians go into a room that’s away from you whenever you get an x ray at a hospital. Distance is effective because it can reduce exposure. Hope this helped!
Answer:
To limits exposure of X-rays, One can do the following things:
1) Use a protective shield through which X-Rays can't pass.
2) Prevent X-rays as much as u can.
3) Don't go to places where you doubt the presence of X-Ray Radiations.
4) If not needed, Don't do CT scan.
The part ofthe part of cell solely responsible for respiration is (a)nucleus( b) mitochondria( c )nucleus( d) Golgi apparatus
Answer:
mitochondrion is the site for respiration..
Answer:
Mitochondria
Explanation:
Which of the following statements associated with cellulose is false? A) It's a linear polymer of glucose. B) The glycosidic linkage is β(1 → 4). C) Hydrolysis is accomplished enzymatically by cellulase. D) Most animals can easily digest this compound.
Answer:
Most animals can easily digest this compound
Explanation:
Cellulose is a linear polymer of glucose comprising of beta 1,4-glycosidic linkage of glucose molecules; this is where it differs from starch. Cellulose is a polysaccharide made of glucose monomers just like starch. The enzymatic hydrolysis of cellulose is achieved by the enzyme cellulase.
Not all animals can digest cellulose. As a mater of fact, no vertebrate can digest cellulose directly. Many herbivorous animals possess symbiotic bacteria in their gastrointestinal tract which enables the digestion of cellulose. These bacteria possess the requisite enzymes for the digestion of cellulose.
What is true about the most recent ice age?
O A. All life on Earth became extinct.
O B. It occurred during the Precambrian era.
O C. Sea levels rose over 300 feet.
D. Land bridges existed that are now underwater.
The truth about the last ice age: D. There was now a submerged overpass.
An ice age also called an ice age, is a geological period in which thick ice sheets cover vast land areas. These massive ice ages could last for millions of years and could radically change the surface topography of entire continents.
There have been several major ice ages in Earth's history. The amount of sunlight reaching Earth over thousands of years varies considerably, especially at the North Pole and its surrounding northern latitudes. When less sunlight reaches northern latitudes, temperatures drop, more water freezes into ice, and the Ice Age begins. This ice age began about 2.6 million years ago in a period known as the Pleistocene epoch and lasted until about 11,000 years ago. Like everything else, the Last Ice Age brought about a series of glacial advances and retreats. In fact, we are technically still in the Ice Age.
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Ross is conducting an investigation in which he has grown three bean plants in three different pots. Each pot is similar in size and contains the same amount and type of soil. He watered Pot 1 with 50 mL of water per day, Pot 2 with 70 mL of water per day, and Pot 3 with 100 mL of water per day. He put the pots on a sunny windowsill and measured the growth of each plant after a week. He recorded his observations.
Answer:
whats the question
Explanation:
Answer:
A. How does the amount of water affect the growth of bean plants?
Explanation:
got it on edgenuity.
What does a seed contain? a plant embryo and pollen grains the female reproductive organs a plant embryo and stored food the male reproductive organs
Answer:
A plant embryo and stored food
Please mark my answer as brainliest
Why do droughts contribute to desertification?
Answer:
Drought and desertification are firmly related phenomenon. Continuing over months or years, drought can influence enormous zones and may have genuine ecological, social and financial effects.
While drought is a characteristic phenomenon, whose effects can be exacerbated by human exercises that are not adjusted to the neighborhood atmosphere, land debasement is the way toward transforming fruitful land into less or non-gainful land. In extraordinary cases in drylands this is called desertification.
Land debasement and desertification are complex phenomenon driven by un-adjusted human action in mix with land and climatic requirements. Improper land use, for example, monocultures, and unreasonable land the board rehearses, for example, deforestation, unsatisfactory agrarian practices and overexploitation of water assets), can cause land debasement that can be additionally disturbed by drought.
Lipids provide about
kJ/g of energy and are stored in
A. 19, granules
B. 36, triglycerides
C. 38, adipose tissue
D. none of these is correct
Answer:
C. 38, adipose tissue
Explanation:
Lipids/fats are one of the three energy storing biomolecules in living systems; the other two being carbohydrates and proteins. Three of them supply energy when oxidized but the amount of energy differs with lipids providing the most amount of energy.
Lipids provide 9 calories of energy per gram when oxidized, which is about 38Kj/g (where 4.2kJ = 1 calorie). Also, lipids or fats are stored throughout the body, specifically in connective tissues called ADIPOSE TISSUES.
what is the main function of oragnelle in the cell
Answer:The cell organelle is a semi permeable membrane which allows some materials to pass through.
why are potatoes curved?
Answer:
Bananas are curved because they grow towards the sun ☀️
Answer:
They are curved because they are shaped like tht when they are born
The gene form of a trait is called a(n)_____. An organism’s allele combination is called the_______ . The physical appearance of an organism is called the________.
Answer:
The gene form of a trait is called a(n) allele.
An organism’s allele combination is called the genotype.
The physical appearance of an organism is called the phenotype.
Explanation:
Genes are segments of DNA that are the basic unit of heredity. They are passed on from parent to offspring.
A gene can be defined as the heredity unit which is transferred form the parent to the offspring and is responsible for determining the characteristics in an individual.
The gene form of a trait is known as an allele.Genotype refers to the genetic/allelic composition for a trait.Phenotype refers to the physical appearance of the genotype.The given blanks can be filled with allele, genotype, and phenotype, respectively.
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acteriophages were labeled with radioactive phosphorous (32P) and sulfur (35S). The labeled bacteriophages were then allowed to infect their host cells. At the end of the experiment, the 32P label was found only inside the host cells and the 35S label was found only outside the host cells. This experiment shows that:
Answer:
They concluded that DNA is a genetic material.
Explanation:
This experiment shows that the DNA is genetic material. For performing experiments, the DNA of bacteriophages is labelled with radioactive phosphorous (32P) and proteins were labelled with sulfur (35S) in order to detect the action of bacteriophages. The bacteriophages attack on the bacteria by inserting its DNA in the bacteria. We can see this because radioactive phosphorus is present in DNA of bacteriophages while the protein did not enter into the bacteria and remain outside the cell and we can see it because protein is made up of sulphur.
all plants give out oxygen during day and carbon dioxide during night do you agree with this statement give reason
Answer:
Not really.
Explanation:
I wouldn't say all plant since this applies to photosynthesis which is carried out by ONLY green plants.
Which of the following processes is increased when many trees are removed
from an area?
A. Runoff
B. Percolation
C. Transpiration
D. Photosynthesis
Answer:
B
Explanation:
1. How does an increase in concentration affect a chemical reaction?
Answer:
it speeds the reaction up
Explanation:
Answer:
speeds the reaction up, making it quicker
Explanation:
Which organism would be classified as an arthropod? crab starfish snail earthworm
Answer: Crab, because an arthropod has no spine but an external skeleton.
Why do I still need the paper that I got out from mental health?
Answer:
Because it is important that you still have the paper for future reference to show that you have passed your mental health classes and do not have to take them again.
Answer:
If you didn't have the paper how would people know that you did officially get out of mental health? Also it shows that you were once in a mental health
Hope this helps!
Describe possible Co-dominance in a unicorn
Answer:
The unicorn has spots.
Explanation:
This shows codominance becuase the to colors are both shown
What basic unit of heredity is found on segments of DNA and are passed on from parent to offspring?
Answer:
Genes
Explanation:
Genes are sequences of nucleotides that determine characteristics. They are passed from parents to offspring.
Gene is basic unit of heredity is found on segments of DNA and are passed on from parent to offspring.
What are the characteristics of gene ?A gene is physical and functional unit of heredity which is made up of DNA.
Genes control both DNA and RNA function.
Some genes codes protein for functional expression of a trait where as some genes do not code for proteins.
In humans, the size of genes ranges from few hundred DNA bases to more than 2 million bases and human have between 20,000 and 25,000 genes.
Each gene have two copies, one is passed from each parent. Only 1 percent of the total genes is slightly different between people.
This is because of presence two different types of allele the same gene which contribute to each person’s unique physical features.
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In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
The chances for survival of the population are reduced. New food sources are discovered and become the regular diet. Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce. The environment adapts by providing more resources to the growing population, increasing the chances of survival for individuals within the habitat.
Answer:
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
Answer:
Answer:
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
Explanation:
Describe the function of each organelle.
Answer:
Cytoplasm: Fluid between the cell membrane and the nucleus. helps protect organelles
Nucleus: A part of the cell containing hereditary information and is responsible for growth and reproduction; the "command center" of the cell.
Ribosome: A small particle in the cell that can make proteins.
Endoplasmic Reticulum: A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
Golgi Apparatus: A cell structure that helps make and package materials to be transported out of the cell or for storage inside the cell.
Lysosome: Cell organelle filled with enzymes needed to break down certain materials in the cell, such as large food particles or old parts of the cell. May be found only in animal cells.
Vacuole: Saclike storage structure in the cell. can store water, nutrients, and even toxic substances.
Mitochondrion: An organelle containing enzymes responsible for producing energy. (Metabolism/respiration)
Chloroplast: An organelle found in the cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy (photosynthesis).
Cell membrane: The thin, flexible barrier around a cell; controls what enters and leaves the cell.
Cell wall: The structure outside of the cell membrane that is used to provide support and protection. Present in plants, algae, fungi, and many prokaryotes.
Answer:
The nucleus directs cell activity.
Ribosomes produce proteins for the cell. These proteins are then moved through the cell by the endoplasmic reticulum.
The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum.
Vacuoles store water, waste products, food, etc.
Lysosomes break down waste material and debris.
Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the energy from sunlight and convert it into chemical energy.
The cell membrane protects the cell and controls what enters and leaves it. The cell wall supports the cell membrane, maintains the cell’s shape, and protects the cell.
The cytoplasm supports and protects organelles in the cell.
Explanation:
Hypothesize about tumor growth. Scientists have shown that tumor growth is an example of positive feedback loops. Why is tumor growth an example of positive feedback? In your answer elaborate using the following terms stimulus, receptor, control center, effector, response.
Answer:
The connection between cancer cells stimulates uncontrolled proliferation and tumor growth
Explanation:
In the tumor, cancer cells are interconnected by different types of proteins, which may act as receptors or amplify oncogenic signals. For example, in breast cancer, it has been shown that oncogenic cells are often connected through E-cadherin proteins that mediate their adhesion, thereby stimulating the cell movement and invasion (characteristic of tumor metastasis). In this case, E-cadherin membrane proteins function by enhancing effector response in cancer cells. The nucleus acts as the control center of the cell that modulates the expression of tumor suppressor genes in order to inhibit tumor metastasis.
Select the correct answer from each drop-down menu. Temperate grasslands and (blank) are two biomes that are dominated by grass species, share similar wildlife, and have few (blank). However, while temperate grasslands have (blank), the other grassland biome has (blank) .
Answer:
The answer is hot ,mammals
Answer:
Temperate grasslands and tropical savannas are two biomes that are dominated by grass species, share similar wildlife, and have few trees . However, while temperate grasslands have hot summers and cold winters , the other grassland biome has both rainy and dry seasons .
Where are Earth's most diverse and productive biomes located?
A. Throughout Europe
B. Near the North Pole
C. In the United States
D. Near the equator
Answer:
D. Near the equator.
Explanation:
Tropical rainforests are Earth's most diverse and productive biomes given all of the hundreds of species thriving within them. They are found at or near the equator.
Answer:
D. Near the equator
Explanation:
Near the equator, there are more productive biomes. Species diversity is higher at the equator than at the poles.