Answer:
RecBCD enzyme
Explanation:
RecBCD is an enzyme of the E. coli bacterium that initiates recombinational repair from potentially lethal double strand breaks in DNA which may result from ionizing radiation, replication errors, endonuclease, oxidative damage, and a host of other factors. The RecBCD enzyme is both a helicase that unwinds, or separates the strands of DNA, and a nuclease that makes single-stranded nicks in DNA.
Two genes for two different traits located on the same chromosome are said to be
Answer:
Gene Linkage
Explanation:
In a situation where we have two genes which are for two different traits or different characteristics situated on the same chromosome they will said to be LINKED GENE and will often have the same Gene inheritance which is what is called GENE LINKAGE reason been that the genes are on one chromosome and Secondly they are situated very close to one another which is why they will mostly be inherited together. Example a person may have a brown eyes and a brown hair because the genes for the hair and eyes are situated close to one another which is why the genes are both inherited together.
Which of the following statements about enzymes is correct?
A.They are destroyed by temperatures below 10 °C.
B.They are changed by the chemical reactions they control.
C.They are all proteins.
D.They are found only in the alimentary canal.
Answer:
C.They are all proteins.
name two substances that will be attacked by a corrosive acid
The name of two substances that would be attacked by a corrosive acid are metals like magnesium, aluminum, zinc, etc, and cloth fibers.
What do you mean by Corrosive acid?Corrosive acid may be defined as a type of acid that is capable of damaging or destroying other substances on contact via a chemical reaction. The chemical reaction which occurred by this contact is extremely fast.
For example, corrosive acid like hydrochloric acid significantly reacts with metals in order to give hydrogen gas and form metal salt. The same principle is applied in the case of cloth fiber and paper. Such corrosive acids rapidly react with them and will damage or destroy them immediately through chemical reactions.
Therefore, the name of two substances that would be attacked by a corrosive acid are metals like magnesium, aluminum, zinc, etc, and cloth fibers.
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The kinetic theory states that particles are in constant _______________.
Choose one answer.
a. Opposition
b. Motion
Answer:
Motion
Explanation:
Kinetic particles are always in motion, that should just be the fundamental law of kinetic energy
In squirrels, there are 3 potential phenotypes: Black, White, and Gray. A Gray squirrel is crossed with another Gray squirrel. What percentage will be Gray?
Answer:
Explanation:
A gray squirrel can either have the same alllele GG or have two different allele Gg this will determine the percentage of the offspring that will be Grey.
For 2 parent with same allele
GG × GG
!
GG GG GG GG
all are grey 100%
For 2 parents with different allele
Gg × Gg
!
GG Gg Gg gg
75% will be grey
25% other color
Checking cells and DNA similarities is called __________________ and provides evidence for evolution.
Answer:
Comparative anatomy
Explanation:
Checking cells and DNA for similarities is called phylogenetics, and it provides evidence for evolution because here the evolutionary relationships are found among different organisms.
What is phylogenetics?Evolutionary relationships among organisms are discussed in this phylogenetics because it uses molecular data from DNA or RNA sequences of different organisms to check the relatedness among species or groups of organisms. Phylogenetics provides evidence for evolution by showing the relationships among different species by studying their DNA and protein sequences and how they have changed over time through modification.
Hence, checking cells and DNA for similarities is called phylogenetics, and it provides evidence for evolution because here the evolutionary relationships are found among different organisms.
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1. What are sediments? The new minerals created after chemical weathering Small pieces of rock or soil material Small sections of tectonic plates The new land created by deposition
Answer:
The new minerals created after chemical weathering
Explanation:
The new minerals created after chemical weathering because sediments are natural minerals which are produced as a result of chemical weathering of rocks which are transported by wind, ice, water through the forced of gravity. Sediments can consist of rock and minerals or remains of plants and animals that are deposited to a new place after weathering or erosion.
How do scientists know the CO2 levels going back over 400,000 years?
Answer: Various proxy measurements have been used to attempt to determine atmospheric carbon dioxide concentrations millions of years in the past. These include boron and carbon isotope ratios in certain types of marine sediments, and the number of stomata observed on fossil plant leaves. 2 record of over 500 million years.
Explanation:
Which part of the cell is selectively permeable? Why does it say so?
Answer:
cellular membranes
Explanation:
Cellular membranes are selectively permeable because they allow only certain molecules to cross into and out of the cell. The phospholipid bilayer is a selectively permeable membrane that surrounds all biological cells. The movement of molecules across the cell membrane bilayer can occur by passive transport (does not require energy) or active transport (requires energy). For example, water molecules pass passively through the cell membrane (passive transport), while other molecules pass through transmembrane proteins against a concentration gradient (active transport).
True or False: Some warm weather plants have adaptations to maximize photorespiration to produce more glucose.
Answer:
false
Explanation:
i looked it up and found many things supporting my answer below is a link to a quizzlet i found
https://quizlet.com/283247219/reading-quiz-19-mastering-biology-flash-cards/
If dad had a blood type of AB and mom had a blood type of Heterozygous B, what will the children blood type possibilities be and what percentage for each
you would most likly have ur moms blood just in case its not the real father
If humans have 23 pairs of chromosomes, each carrying hundred to thousands of genes, roughly
how many genes are there in the human genome?
A) 23
B) 46
C) 1000
D) 20,000
E) 200,000
Which of the following elements is an essential part of organic compounds in his cutest structure and function of any cell?
Oxygen
Nitrogen
Hydrogen
Carbon
Hydrogen
followed by carbon, oxygen, and then nitrogen.
What can viruses with glycoproteins do differently from viruses that do not have them?
Answer:
Well you could pay more attention in class you don't have to ask this easy question!
Explanation:
7,000,000 kilocalories are available at the producer level. The secondary consumers will
have
A. 700,000,000 kcal available
B. 7,000 kcal available
C. 700,000 kcal available
D. 70,000 kcal available
Place the steps of protein synthesis in order
with examples discuss principles used to collect, process and analyze statistical data in Agriculture
Answer:
The principles used to collect, process and analyze statistical data in Agriculture is explained below in details.
Explanation:
There are multiple techniques used to collect or receive data for statistical examination. Three of the most traditional techniques are Direct Observation • Operations and • Surveys. A review petitions data from people; e.g. Gallup surveys; pre-election surveys; marketing reviews. Field data collection facilitates us to gather important information such as the crops farmed, agronomic methods utilized by the farmer, and data on the temporary growth of crops.
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:
Which of the following explains why fossils of some extinct organisms have been found while others have not?
A.
Fossils only exist for organisms that lived over 3 million years ago.
B.
Fossils only exist for organisms that had shells or hard outer body coverings.
C.
Most organisms die and decompose without leaving any fossil remains.
D. Only very large organisms have enough body mass to result in fossil formation.
Answer:
i think its C option that most organisms die and are decomposed without leaving any fossils remains.
Explanation:
Which accurately labels the endoplasmic reticulum?
W
X
Y
Z
Which of these is the primary site of protein synthesis?
a. mitochondria
b. cytoplasm
c. nucleus
d. ribosomes
Answer:
d) ribosomes
I belive is d
Describe an individual with the karyotype shown.
a normal female
a normal male
an infertile female
an infertile male
Answer:
An infertile male!
Explanation:
List three examples of single celled eukaryotes.
Answer:
Explanation:
Algae, phytoplankton and zooplankton
mga impluwensya ng relihiyon sa lipunan,sining at kultura,politika at pagpapahalaga o moralidad
Answer:
Yes, Religion has a great influence on society.
Explanation:
Religion has a great influence on society, art, culture and politics because religious touch all these aspects of life. Religion is a way of life that is followed by the people in every aspects of life which directly affect the society and other related fields. A religious society follow their religion in their politics, culture and also in their architecture. So we can conclude that religious has a great influence on society, art, politics and culture of people.
True or False:
Most earthquakes are too small to notice
Answer:
true
Explanation:
i checked
even i didnt know this
thx for info tho
___________________________________________________________
Answer:
Most of them are too small to feel. We cannot predict exactly when the next big earthquake will happen in the Bay Area, or anywhere else; we can only give a probability.
___________________________________________________________
Why does cellular respiration need photosynthesis?
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Explanation:
didn't already answer this question???
When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed.
Answer:
The statement is true.
Explanation:
Mutation can be defined as any permanent alteration in the DNA base sequence of the genome of an organism, that is, a mutation is any change in the nucleotide sequence of the. DNA. This, in turn, can be of two types: By substitution of bases: alterations in the nucleotide sequence of a gene and two classes are known: transitions or transversions, and by loss or insertion of nucleotides: these are modifications where it can be losing or adding a nitrogenous base, which is important for encoding a specific protein and therefore changes the message of the genetic material.
What type of thunderstorms do tornadoes come from most often?
A. Air Mass/Frontal
B. Frontal/Super-cell
C. Air Mass/Moist-cell
D. Air Mass/Super-cell
Answer:
B. Frontal/Super-Cell
Explanation:
The type of thunderstorm that most often come from tornadoes is the Frontal/Super-cell. Thus, the correct option for this question is B.
What is a Thunderstorm?A thunderstorm may be defined as a type of natural calamity that significantly includes a storm with lightning and thunder. This natural calamity is generated by a cumulonimbus cloud that typically produces gusty winds, heavy rain, and sometimes hails.
According to the context of this question, most often tornadoes are generally spawned from supercell thunderstorms. These thunderstorms are significantly characterized by a persistent or continuous rotating updraft and form in environments that direct the vertical wind shear and five rises to the frontal.
Therefore, the Frontal/Super-cell is the type of thunderstorm that most often come from tornadoes. Thus, the correct option for this question is B.
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PLEASE help me with this I have 1h left
Answer:
What are the word options?
Explanation:
What system is the most similar to the cell wall?
Answer:
Bacteria have a structure called a cell wall. Fungi and some ptotozoa also have cell walls. They are not the same as the plant cell walls made of cellulose. The other walls might be made from proteins or a substance called chiti
Bacteria cell possess an outer covering called as cell wall, Fungi and some protozoa also have cell walls, plant cell also have cell wall except animal cell.
what is the function of cell wall ?A cell wall can be defined as the non-living component of a living cell which act as an outer covering the outmost layer of a cell.
The composition of cell wall varies from organism to another organism which separates the interior contents of the cell from the exterior environment.
It provides shape, support, and protection to the cell from external environment, Prokaryotic cell has cell walls are chemically different from the cell wall found in plants and fungi.
The prokaryotic cell walls are made up of large polymers known as peptidoglycans, it serve as a protective layer and prevent lysis; prokaryotic cell walls made up of An inner layer composed of peptidoglycans and An outer layer composed of lipoproteins and lipopolysaccharides
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