Answer:
When a genetic disorder is diagnosed in a family, family members often want to know the likelihood that they or their children will develop the condition. This can be difficult to predict in some cases because many factors influence a person's chances of developing a genetic condition. One important factor is how the condition is inherited. For example:
Autosomal dominant inheritance: A person affected by an autosomal dominant disorder has a 50 percent chance of passing the mutated gene to each child. The chance that a child will not inherit the mutated gene is also 50 percent. However, in some cases an autosomal dominant disorder results from a new (de novo) mutation that occurs during the formation of egg or sperm cells or early in embryonic development. In these cases, the child's parents are unaffected, but the child may pass on the condition to his or her own children.
Hydrophobic interactions are the basis for Sudan tests. Explain how hydrocarbons in lipids interact with polar surroundings
Answer and Explanation:
Lipids are non-polar molecules, so they do not interact preferentially with polar molecules but they can interact with each other. In a polar medium, such as water, the hydrocarbons in lipids aggregate each other, in order to minimize contact with surrounding polar molecules. The interaction between non-polar solutes with polar surroundings exclusion is called hydrophobic interaction.
Activity
Research and identify a common resource in your state and explain the consequences of rise in population on the resource.
Answer:
Pollution, crimes and overcrowding.
Explanation:
Lack of family planning is responsible for the rise of population. It brought many adverse changes in the environment such as pollution, crimes and overcrowding etc. Rise in population causes unemployment that leads to crimes in the society. It also produces pollution due to more human activities such as emission of fossil fuels and more industries should be built to provide basic needs to more population. Rise in population causes agricultural to be converted into residential area that leads to decrease food production.
PLS HELP IM TIMED!!
Fish eggs that are fertilized externally are typically clustered and covered in a thick, jelly-like substance.
What is most likely the function of this substance?
a) to protect the eggs and keep them consistently warm inside the parent's body
b) to protect the eggs and keep them safe from any harmful environmental conditions
c) to ensure that only a few of the eggs are fertilized by sperm since external fertilization is uncommon and risky
d) to ensure that only some of the eggs are fertilized by sperm so others can be fertilized internally
Answer:
Don't get me wrong but I think it's B
Explanation:
Answer:
The correct answer is B: to protect the eggs and keep them consistently warm inside the parent's body. It is correct on edge
Explanation:
Hope this helps and good luck:)
Hello can someone help?
Im confused
Answer:
Maybe B
Explanation:
Hi! I'm not sure... If you want to take the risk, go ahead... But IF it's correct pls mark me the brainliest
Sister chromatids are ____.. Single choice.
A. dense patches within the nucleus
B. bacterial chromosomes
C. joined strands of duplicated genetic material
D. prokaryotic nuclei
Option 2
Please hellppppp!
Answer:
C- joined strands of duplicated genetic material
Explanation:
key words duplicated sister
The nucleotide base sequence of a strand of DNA is TAC-CGG-AGT . What is the sequence of the complementary DNA strand ?
Answer: ATG-GCC-TCA
Explanation: A's pair with T's, C's pair with G's. In the complementary strand simply pair any T's with A's and vice verse and any C's with G's and vice verse
Why do cells continue to divide in adult organisms?
Answer:
In addition some cells divide continuously throughout life to replace cells that have a high rate of turnover in adult animals Cell proliferation is thus carefully balanced with cell death to maintain a constant number of cells in adult tissues and organs
Explanation:
The energy produced by respiration is the in the form of adenosine triphosphate or ____________
Answer:
ATP
Explanation:
Adenosine triphosphate
NADP+ is an example of an electron carrier. Describe its function in photosynthesis.
Answer:
Its ferment oxidant-renewal of bio-reactions at cells.
What are Hox genes?
A. genes that can produce large changes in adult animals during the embryological development
B. genes that are most often used to calculate a molecular clock
C. genes that have never gone through the process of crossing over
D. duplicate genes that are always responsible for speciation
Answer:
a
Explanation:
I haven't heard of them
Answer:
A.
Explanation:
Hox genes encode and correct positions of body structures making sure they form in the correct places in the body.
Use chaparral and tundra in separate sentences
Answer:
The arctic tundra is extremely cold all year round.
To reach the ruins, we had to travel through much chaparral.
Explanation:
Which organelles must work together to provide food and energy to a plant cell?
Answer:
Cells are membrane-bound groups of organelles that work together to allow it to function. Some of the major organelles include the nucleus, mitochondria, lysosomes, the endoplasmic reticulum, and the Golgi apparatus. Plant cells also include chloroplasts, which are responsible for photosynthesis.
Explanation:
Hope this helps have a wonderful day! <3
PLEASE HELP !!!!! ILL GIVE THE BRAINIEST!!!
Answer:
hello i am not sure but i think the answer is D
Each species has a special scientific name that is selected by the person or group that discovers it. The name typically conveys information about the species. Thus, option D is correct.
What are the main characteristic for changing an organism?The kingdom is a smaller taxon than the recently added domain, which is a more expansive taxon. Similarities in outward physical characteristics serve as the foundation for the Linnaeus system.
Gene variants, sometimes known as mutations, can cause genetic differences, or a normal process in which genetic information is rearranged as a cell prepares to divide can also cause genetic variations (known as genetic recombination).
Therefore, Different phenotypes can be introduced into an organism by genetic changes that change gene activity or protein function.
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With respect to normal base pairing, when a molecule of DNA replicates, thymine will most likely pair with 2 points
Answer: Adenine
Explanation:
The structure of the DNA double helix is complex in nature. There are two strands of DNA that are wound around each other. The nitrogenous bases are bonded with hydrogen bonding and base complementarity. According to the Chargaff's rule of base complementarity adenine always pairs with the thymine and guanine with cytosine. These nitrogenous bases are paired on the basis of hydrogen bonding. Adenine bonded with thymine through two hydrogen bonds whereas the cytosine pairs with guanine via three hydrogen bonds. During DNA denaturation these hydrogen bonds are broken whereas during DNA replication these hydrogen bonds are formed between the nitrogenous bases.
Which term best describes the rate at which glacial erosion takes place? HELP PLEASE!!!!!!!
Group of answer choices
Quick
Slow
Ephemeral
Sudden
Answer:
Slow
Explanation:
The rate at which glacial erosion occurs is very very slow, it is difficult to observe a glacier erosion. As there are two main processes which occurs in glacial erosion. Plucking which is defined as the erosion stage and which transports large chunks of rocks.
7. Which of the following is not an example of an abiotic factor?
O Water
O Soil
O Disease
O Air
Please help
Answer:
Disease
Explanation:
Water, Soil and Air are all biotic except for disease.
How is passive transport different from active transport?
A) Passive transport is substances moving from HIGH concentration to LOW concentration.
B) Passive transport requires energy input.
C)Passive transport happens regardless of concentration gradient.
D) Passive transport is substances moving from LOW concentration to HIGH concentration.
ASAP
Answer:
A
Explanation:
Passive transport does not require energy. The substances follow the concentration gradient, meaning they go from high to low. Active transport goes against the concentration gradient. Substances go from low to high, so it requires energy.
Three things can happen at the boundaries between earths plates. If one plate moves underneath another it’s called a
Answer:
I believe it is called SUBDUCTION.
Earth's plates are called TECTONIC PLATES BTW
Ribosomes assemble proteins from___?
DNA
amino acids
mitochondria
cytoplasm
Answer:
Amino acids.
Explanation:
Use your observations from the lab activity/lab video and the data tables to explain how salinity affects the way cold water from melting ice mixes with warm water.
MUST DO THE GIZMO LAB
https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fj.mp%2f2xEVbH2&c=E,1,W18vDiET_qY95IoljRmfTZ1KOmwgV8TTajW0p-106B4yZ2Z4Hb0F9LUk21rjhlfridBb9NkRGcIDSjHYFxZDLsOn8iCWP2EKd-ODPF3IQrt5d24,&typo=1
Answer:
The link doesn't work but it is known that when you add salt to ice, the ice not only melts but will actually get colder.
hope this at least helped you :>
HELP ME PLS
Only a few natural elements have a greater density than gold. They are: ??
15 POINTS AND BRAINLIEST FOR CORRECT ANSWERS!!!
Plutonium
Neptunium
osmium
let me know if it's correct or not, these were the only ones I could think of.
Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.
What is an element?
An element is define as a type of substance that is impossible to break into smaller pieces by the help of chemical process. There are several rules that should be followed at the time of assinging name of the elements. The first rule is name of the element is not a proper noun. The second rule is the symbols of the element that must be of one or more than one symbol.
Density is define as the mass per unit volume it means that 1 kg mass present in 1 meter cube is called density, density is also states that the how compact an material.
Mathematically
Density = mass/volume
S.I unit of density is kg/m^3
Density is higher in solid as compare to liquid and density of liquid is higher than gas so density is in order of SOLID>LIQUID>GAS. So we know that solid is compact in nature as compare to liquid and gas.
Therefore, Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.
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Plants draw water out of the ground and release water vapor into the atmosphere.
What is this process known as?
Precipitation
Evaporation
Transpiration
Condensation
Answer:
D: Condensation
Explanation:
Scientists want to investigate the effects of chronic acidification on a desert ecosystem. Which independent variable are the scientists most likely monitoring in their investigation? a. The amount of fog during different times of the year b. The composition and amount of seasonable melt water c. The daily production of sulfur dioxide by a nearby factory d. The heaviest traffic periods of the year
The independent variable is the scientists most likely monitoring in their investigation for the investigate the effects of chronic acidification on a desert ecosystem - c. The daily production of sulfur dioxide by a nearby factory
Chronic acidificationEcosystems result in chemical changes to soil and to surface waters and groundwater as a result of reduction of base cation or H⁺. The major effects of SO2 emission have on the soil system
An increase in contents of total sulfur, organic carbon, and exchangeable Al, leads to a lowering of pH and causes acidification of soil. Fog does not participate in acidification
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Answer: the daily production of sulfur dioxide by a nearby factory
Explanation: it was correct on the quiz
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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! ASAPPPP
How do we differentiate between infectious and noninfectious diseases.
Answer:
Infectious diseases are caused by the passing of one person to another. Corona is an example. Noninfectious diseases, they are just spread by pathogens. Good luck!
In living things, cells must be in a _____________________ solution where water leaves and enters the cell at _________________________________________.
Answer:
isotonic; the same rate
Explanation:
Cell Theory as as commonly known gives the best definition for cells. All organisms that ever existed are made up of one or more cells. The theory state that the cell is a basic unit, that is of all living things, and that all cells come from cells that have existed.
For cell that is in an isotonic solution,no net flow of water into or out of the cell will be experienced, the volume of the cell is at a state of stability. When the level or concentration of solute in and out of the cell is at the same pace or level, the the cell membrane does not allow solutes to cross, leading to the solution being isotonic to the cell.
Which of the following is linked to an increase in brain size and intelligence in
hominids?
O Increased speed and strength
O Increased social interactions
O Decreased use of tools and language
O Development of more complex and tools and language
HURRY PLEASE IM TIMED!!!!!
Answer:
D
Explanation:
When The evolution of human intelligence is closely tied to the evolution of the human brain and also that to the origin of language.When larger brain size and also that volume is associated with better cognitive functioning and higher intelligence. Although when The specific regions that show the most robust correlation between volume and also that intelligence are the frontal, temporal, and also parietal lobes of the brain.
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What is the Plate Tectonics Theory?
Answer:
The plate tectonics theory is that there are PLATES covering the earth's surface. This theory also says that they may cause earthquakes and cause volcanos to form!
Have a wonderful day!
Explain the difference between the three types of selection
Th difference between the three type of selection has been that stabilization selection keeps allele frequency constant, direction selection changes the allele frequency over generation, while disruptive selection maintain high allele frequency.
What is natural selection ?
Natural selection is the process by which populations of organisms adapt and change.
The 3 Types of Natural Selection
Stabilizing SelectionDirectional SelectionDisruptive SelectionStabilizing SelectionStabilizing selection is natural selection that keeps allele frequencies relatively constant from generation to generation. In other words, unless the environment changes, things stay the same.
A classic example of stabilizing selection is human birth weight Very low birth weight and very high birth weight are mutually selected to keep the mean birth weight
Directional SelectionDirectional selection is a natural selection that causes gradual changes in allele frequencies over several generations. This usually occurs when environmental/selection pressures change or when favorable new alleles emerge within the population.
Example: Recent findings show that climate change is affecting fish size in certain habitats.
Disruptive SelectionDestructive selection is natural selection that maintains high frequencies of two different allele sets. In other words, individuals with intermediate phenotypes or alleles are selected.
Destructive selection causes polymorphism: the persistence of two or more distinct phenotypes in species . This can occur in environments that exhibit variability.
For example, birds in the Galapagos Islands use their beaks to forage seeds of various sizes.
Therefore, the difference between the three types of natural selection is that:
Stabilizing selection keeps allele frequencies relatively constant from generation to generation.
Directional selection causes gradual changes in allele frequencies over several generations.
Destructive selection maintains high frequencies of two different allele sets.
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-1 Define cell and cytology.
In this metabolic process, the enzyme RNA polymerase binds RNA nucleotides (the substrates) together by catalyzing the formation of a bond between the backbone sugar of one nucleotide to the backbone phosphate of another nucleotide. Name the metabolic process that bonds RNA nucleotides together
Answer:
TRANSCRIPTION
Explanation:
Transcription is the first process that occurs in the expression of a gene. It involves the synthesis of a mRNA molecule from a DNA template. The DNA molecule, which is located in the nucleus of an eukaryotic cell, is bound to by an enzyme called RNA polymerase in order to synthesize an mRNA molecule/strand.
RNA polymerase synthesizes a mRNA molecule using complementary base pairing rule i.e. Uracil base (U) is synthesized when Adenine (A) is read, Adenine when Thymine (T) is read, Guanine (G) when cytosine (C) is read, Cytosine when guanine is read. These nucleotide bases are then joined together via chemical bonding.
In a nutshell, RNA polymerase catalyzes the formation of a bond between the backbone sugar of one nucleotide base to the backbone phosphate of another nucleotide base in the metabolic process of TRANSCRIPTION.