If an organism is produced by sexual reproduction,
what percentage of its genes comes from its father?
A.100%
b. 50%
C.25%
d. 0%
Answer:
50%
Explanation:
which of the following lists correctly summarizes the main function of proteins in the human body? (4 points)
Answer:
Powering movement, structural support, hormone production, antibody and enzyme production
Which pair shows the chromosome numbers in human cells both before and after meiosis?
O 46 and 46
O 23 and 23
O 23 and 46
O 46 and 23
Which of the following statements BEST explains the relationship between microscopic organisms like bacteria and amoebas and their environment? O Microscopic organisms do not have to compete for abiotic factors such as space or water. O Microscopic organisms are affected by changes in their nonliving environment, such as changes in temperature or pH. O None of these are true, O Microscopic organisms always take shelter in other living organisms.
Answer:
Microscopic organisms are affected by changing in thier non living environment.
Explanation:
e.g bacterial internal osmotic gradient changes due to the changing in external water concentration so as for amoeba.
What is an event of a convention current in the air
Answer:
Convection drives the circulation of air in the earth’s atmosphere. The sun heats the air near the earth’s equator, which becomes less dense and rises upward. As it rises, it cools and becomes less dense than the air around it, spreading out and descending toward the equator again.
Explanation:
Sickle cell anemia is caused by a mutation that alters red blood cells. HELP ME PLZZ!!!
Answer:
In Sickle Cell Anemia:
Mutation that occurs in DNA is due to the substitution of thymine base by adenine base. Change in mRNA consists of a change of the GAA codon to GUA, which codes for a different amino acid. The change that occurs in the synthesized protein is the substitution of glutamic acid by valine, the consequence of which is the structural alteration of this protein.Explanation:
Sickle cell anemia is a disease that is transmitted from parent to child in an autosomal recessive inheritance pattern. It is due to a mutation that is capable of altering the shape of the erythrocyte, as well as its ability to circulate and carry oxygen.
First, a puntual genetic mutation occurs, where the sequence of DNA bases that determines the synthesis of the hemoglobin β-chain, by suffering the substitution of thymine by an adenine: CTT → CAT.The transcription of this altered sequence to mRNA results in the change of the GAA codon to GUA, which encodes a different amino acid.Once the β-chain is synthesized, in its structure there is a change in the amino acid sequence, due to the substitution of glutamic acid by valine.The interaction of valine with the other amino acids of the protein promotes a structural change, responsible for the deformation of the red blood cell that characterizes sickle cell anemia.
This is a change in genetic makeup of a population or species over time
Answer:
Mutation
Explanation:
Mutation change the genetic makeup of a population of species over time.
An example is the immunity of plasmodium parasite to chloroquine without time.
Answer: mutation
extra words cause it wasnt long enough
1) Gregor Mendel created the law of independent assortment, that genes are distributed from parent to offspring independently of only another. Which characteristic of Meiosis primarily causes this, and what phase does it occur during?
a. Homologous pairs form and align, during Interphase
b. Crossing over occurs between Homologs, during Prophase 1
c. Meiosis enters a second round of splitting, during Prophase 2
d. Chromosomes are separated into 4 separate cells, during Anaphase 2
2) Which of the following is a Homo-zygous Genotype?
a. GG
b. Gg
c. gg
d. both A and C
3) A red flower (RR) is crossed with a red flower (rr). What are the chances for each type of offspring by GENOTYPE.
a. 25% RR, 50% Rr, 25% rr
b. 50% Rr, 50% rr
c. 100% Rr
d. 100% Red offspring
4) In Genetics, Dominant and Recessive are terms used to describe the relative strength of a specific trait. Which of the following is true for the term “recessive”?
a. Recessive genes can be masked by dominant genes
b. Recessive genes are always visible
c. In order to have a recessive trait, your parents must display that trait
d. Recessive genes show up later in life
5) Two Monsters, Hagatha and Urman, are expecting a child together. Hagatha is Hetero-zygous for Sharp claws, while Urman is Homo-zygous Recessive for Dull claws. Which of the following correctly identifies the Genotypes of both monsters? (use D or d to represent claw alleles)
a. Hagatha is Dd, Urman is dd
b. Hagatha is Dd, Urman is DD
c. Hagatha is DD, Urman is Dd
d. Hagatha is DD, Urman is dd
2 = d
3 = a
4 = a
5 = a
I am not so familiar with 1 and 3 sry
Homzygous means two identical alleles so a and c are both homzygous
recessive genes are not expressed if a dominant allele is present but with be expressed if the no dominant allele is present.
If you do a cross test you can determine the percentage.
Hagatha is heterozygous meaning non identical allele like Dd or dD and the other is homzygous recessive meaning that it has identical allele like DD or dd but it's recessive so it's dd.
I hope I helped you helped you enough
What organ in the respiratory system produces sound waves
as air passes through it?
Answer:philis or esophagus
Explanation: I donno one if the two
What is the function of each of these structures in the cell membrane? a) phospholipid bilayer b) peripheral protein c) integral protein d) glycolipid & glycoprotein e) cholesterol
Answer:
The correct answers are described in the Explanation section.
Explanation:
The function of the structures in the cell membrane are as follows:
a) phospholipid bilayer: comprised of fatty acids and alcohol, the phospholipid bilayer acts as a hydrophobic barrier to avoid the uncontrolled transport of molecules and ions.
b) peripheral protein: they are proteins present in the external surface of the cell membrane. This proteins form temporary bonds between the cells and other molecules, attaching and detaching at specific times.
c) integral protein: this proteins have one part of its structure in the surface and other part within the cell membrane. They have different roles, including: receptors, transporters, linkers, channels, among others.
d) glycolipid & glycoprotein: proteins that have carbohydrate-bearing portions in its extracellular environment. They maintain the stability of the cell membrane and facilitate cellular recognition.
e) cholesterol: cholesterol structure helps to the packing of the phospholipids, which restricts the passage of the molecules.
What type of energy change occurs as a match burns?
A.
There is an increase in total energy.
B.
Chemical energy changes to light and heat energy.
C.
Kinetic energy changes to potential energy.
D.
There is a decrease in kinetic energy.
Answer:
A
Explanation:
It has kinetic energy and chemical energy too, so A just sums up of those two.
What's that answer I don't understand?
ima mannnnnnnnnnnnnnnnnnnn
Plssssss help what the answer
Answer:
[tex]\bold{\huge{\fbox{\color{Red}{Sorry don't know}}}}[/tex]
False all it needs is air
Make the list of the events of mitosis
Answer:
include chromosome condensation, formation of the mitotic spindle, and attachment of chromosomes to the spindle microtubules. Sister chromatids then separate from each other and move to opposite poles of the spindle, followed by the formation of daughter nuclei.
please help asap, i’ll give you brainliest
Answer:
B i think
Explanation:
The size of your brain continues to grow your entire life.
A. true
B. false
Answer: B
Explanation:
What would be affected negatively by contaminated watersheds?
crops
sewers
ОООО
chemicals
water cycle
Answer:
crops is the best choice here hope this helps
Answer:
a
Explanation:
What is a DNA fingerprint? (FORENSICS)
Explanation:
It is used to establish a link between the biological evidence and a suspect in a crime investigation.
the rose experiment to answer the question. What are the independent and dependent variables?
Two basic tasks that every cell must accomplish are to produce energy and remove waste.
Answer:what do you mean. Do you want me to list two facts?
Explanation:
PLEASE HELP! First answer gets brainliest!!!
1. What type of plate boundaries are A, C, and D?
2. What type of crustal feature(s) will form at plate boundary D?
Answer:
transform boundaries are zones or plates a slide past each other c move together causing one to go beneath the other b move apart leaving a gap d
"A test cross is used to.."
A. Determine the genotype of an organism with a recessive trait
B. Determine the phenotype of an organism with a dominant trait
C. Determine The phenotype of an organism with a recessive trait
D. determine the genotype of an organism with a dominant trait
Answer:
B. Determine the phenotype of an organism with a dominant trait
Explanation:
have a nice day!
could someone please help? IVE LITERALLY BEEN CRYING CUZ I CANT DO THIS
The Punnett square is for a test cross of two mice that were purebred for two different traits. What will their offspring be? Fill in the white boxes of the Punnett square with all possible offspring genotypes.
Answer:
Hope it helps DEAR
Explanation:
Each box in the Punnet square should have BbEe in them. Yes, all of them contain this possible offspring genotype.
Explanation:
A mouse with black fur and one with white fur are being bred. Black fur is BBEE and white fur is bbee. Hence, when listing them on the Punnet square, the genotypes will be heterozygous, since there are possible traits of each fur color
How Fast can you answer CORRECT how fast can i give you brainliest??? TWO answers explain your answer if its correct ill do a 100point question just for you:D..
//
Answer:a and b
Explanation:
Select the correct answer.
What is the primary effect of ozone depletion?
1Harmful substances will be added to the air.
2Water will be contaminated
3Harmful ultraviolet (UV) rays will enter the Earth's atmosphere.
4Land quality will be degraded.
Answer:
1 nowwwwwwwwwwwwwwwwwwwww nnooooooowwwwwwww
Answer:
The answer is #3 or C.
Explanation:
Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
___ describes how much energy an earthquake releases
Answer:
Magnitude
Explanation:
Magnitude is expressed in whole numbers and decimal fractions. For example, a magnitude 5.3 is a moderate earthquake, and a 6.3 is a strong earthquake. Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude as measured on a seismogram.
sweet taste is felt earlier than the
witter taste, why.
->
Answer:
Because our taste receptors recognise sweet taste faster than bitter taste.
because the taste receptors for tasting sweetness are at the tip of your tongue while the receptors for tasting bitterness are at the back of the tongue
What are three reasons why it is important for cells to stay so small?
Answer:
Cells are so little, so they can maximize their ratio of surface area to volume. Smaller cells have a higher ratio which allow more molecules and ions move across the cell membrane per unit of cytoplasmic volume. Cells are so small because they need to be able to get the nutrients in and the waste out quickly.
Explanation:
i think this is the answer so yeah:D
Answer:Cells are small because they are more efficient as smaller entities. Information within small cells is transmitted more quickly and efficiently than within larger cells. The nucleus or "command center" of the cell initiates cellular activity by converting genetic information into functional molecules, such as proteins. These proteins and other molecules are then directed around the cell to perform specific functions. The larger the cell, the longer these proteins and other cellular processes will take to carry out their functions. This is quite energy expensive and a less than ideal situation; therefore, cells tend to be relatively small.
As cells increase in size, the volume increases by a power of 3, whereas the surface area increases by a power of 2. This expansion results in a lower surface area-to-volume ratio that is less efficient for transmitting information through cells. Information coming into, traveling through or exiting cells must traverse a much greater distance (through the increased volume) to reach its final destination. Thus a higher cell surface area-to-volume ratio, i.e., smaller cell size, is desired for most efficient cellular activity. Additionally, and importantly, the smaller surface area and larger volume of larger cells does not permit enough molecules to pass in or out of the cell. Because information can enter or exit a cell through it's plasma membrane, the greater the surface area-to-volume ratio, the more molecules that can enter or exit per unit of volume. This is also much more efficient for cells.
Explanation:
How does the work of the National Oceanic and Atmospheric Administration (NOAA) help people?
A. They analyze seismic data and make predictions of future natural diasters.
B. They provide funding for areas damaged by natural disasters.
C. They evacuate an area when a flood or landslide occurs.
D. They monitor weather conditions and send out flood warnings.
Answer:
its D :)
Explanation:
i took the test
Answer: Guys it is actually D. They monitor weather conditions and send out flood warnings.
Explanation:
Becaue NOAA provides timely and reliable information based on sound science to communities and businesses every day. From daily weather forecasts, severe storm warnings, and climate monitoring to fisheries management, coastal restoration and supporting marine commerce, Americans rely on NOAA. (I know that because I do a lot of reasearch for in High School!)
can someone please help??