Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and Macromolecules, including proteins and RNA.
State the 7 steps required to replicate DNA. Include enzymes names and their functions.
Answer: Step 1: Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be “unzipped” into two single strands. ...
Step 2: Primer Binding. The leading strand is the simplest to replicate. ...
Step 3: Elongation. ...
Step 4: Termination
Explanation:
are bacteria prokaryotes of eukaryotic
Answer:
well they can be both sometimes, some can survive in very hot environments, but most can be killed by heat so it is prokaryotic
Explanation:
Describe the ways mutations can affect DNA and chromosomes.
The mutation affects DNA and chromosomes by changes in the sequence of DNA or changes in the gene present on the chromosome.
What is mutation?The mutation is a sudden change in the structure of chromosomes or DNA. The smaller mutation affects the nucleotide base in DNA, while the larger mutation affects the genes present on the chromosomes.
The substance which causes mutation is known as mutagens. Mutation can cause problems in growth and development and affects the functioning of the body. When changes occur in chromosomes or DNA, they cause changes in the protein. Due to this, a different kind of protein is produced.
The mutation is caused by the insertion, duplication, deletion, and substitutions of a DNA sequence. Thus, mutation can affect DNA and chromosome in many ways.
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DNA is always coiled up tightly in chromosomes.
True or false?
2. What is the role of wax impressions, and/or plaster casts, of teeth in forensic odontology
Answer:
to help mold or move the teeth
Explanation:
when you put a piece of wax on a pencil it miles to what the pencil shape is so the impression is either a vaneer or just mold of your teeth
Look at the diagram of the male reproductive system. Name the parts
Answer:
Explanation:
مرحبًا ، أود أن أحاول مساعدتك في عملك المدرسي. إذا كنت تستطيع أن تشرح أكثر فأنا أقدر ذلك.
The diagram of the male reproductive system. The parts names are 1. prostate gland, 2. Pe.nis, 3. Urethra, 4. Vas deference, 5. testis, 6. scrotum .
The biological process of creating offspring of the same sort is known as reproduction. It is one of the critical mechanisms that ensures the survival of the species generation after generation.
The testes, scrotum, spermatic ducts, male accessory glands, and pe.nis comprise the male reproductive system. All of these organs collaborate to make sperm, the male gamete, male sex hormones, and other semen components.
Pe.nis: It refers to the male genitalia. It consists of three cylindrical chambers filled with erectile tissue. The two larger ones, the corpora cavernosa, are side by side, and the third is the sinus, called the corpus spongiosum, which covers the urethra.
Scrotum: It is a thick skin sac that protects and surrounds the testicles. It also regulates the temperature of the testes, which must be slightly lower than body temperature in order to produce appropriate sperm.
Testes: In humans, there are two testes. The testes are located outside the body in a pouch known as the scrotum. They have oval bodies that are 4 to 5 cm long and 2 to 3 cm wide.
Male sex accessory ducts are known as vas deferens.
Urethra: It is a tube-like structure that connects the urine bladder and urinary meatus.
The male accessory glands produce fluid that feeds the sperm. It is known as seminal plasma. This fluid contains a lot of fructose, calcium, and enzymes. It is the largest volume of semen from which the sperm is released during ejaculation.
Thus, The parts names are 1. prostate gland 2. Pe.nis 3. Urethra 4. Vas deference 5. testis 6. scrotum .
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PLEASE HELP!!!
Which list correctly identifies characteristics that protists share with animals?
A. Motile, Reproduce sexually, Photosynthetic
B. Motile, Multicellular, Photosynthetic
C. Motile, Eukaryotic, Reproduce Sexually
D. Motile, Prokaryotic, Multicellular
Answer:
C. Motile, Eukaryotic, Reproduce Sexually
Explanation:
I just took the Test
The list that depicts the characteristics animals and protist share is: C. Motile, Eukaryotic, Reproduce Sexually.
Protist and animals are classified as eukaryotic organisms, this is because they have a well-defined nucleus. Thus, both are eukaryotic.
Virtually all protists are capable of moving with the aid of structures such as pseudopodium, flagella or cilia. Also, animals possess well developed structures and organs for movement. Hence, protist and animals are motile.
Animals reproduce sexually through the fusion of male and female gametes to produce their offspring. Also, some protist such as Plasmodium reproduce sexually.
A photo collage showing the image of some protist is provided in the attachment below.
Therefore, the list that correctly describes the characteristics shared by protist and animals is: C. Motile, Eukaryotic, Reproduce Sexually.
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The patient recovers his/her strength and return to his/her normal state of health.
Answer:
good job
Explanation:
but what does this mean
What happens to a CO2 molecule when an infrared wave hits it?
The energy from the photon causes the CO2 molecule to vibrate. Some time later, the molecule gives up this extra energy by emitting another infrared photon. Once the extra energy has been removed by the emitted photon, the carbon dioxide molecule stops vibrating.
Which of the following is not a function of the skeletal system?
A.
provides a framework for the body
B.
provides protection for internal organs
C.
movement of bones
D.
production of new blood cells
Answer:
C
Explanation:
The skeleton relies upon the contraction and relaxation of muscles which are attached to bone in order to move. The muscular system is made up of three types of muscle, one of which is responsible for the movement of bone. To add to the confusion, the relationship between both muscles and bones is often lumped together as the musculoskeletal system, but to be sure, they are unique in their own ways.
In summary, bones can't move on their own, and therefore movement cannot be the skeletal system's function.
A person takes a drink of water and begins to
choke. The water has gotten into the person's
windpipe. Which part of the upper respiratory
system is supposed to prevent this?
larynx
nasal cavity
pharynx
nose
A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow. But in some cases, food or drink can enter the trachea. It may go down as you swallow.
Answer:
Larynx
Explanation:
What do contour lines that are farther apart represent?
Which blood cell is most abundant?
HELP ITS EASY JUST THAT IM DUM-B
What is true about these two brothers that have brown eyes: One has genotype (BB) the other (Bb). B=brown eyes b= blue eyes
A) The brothers have the same phenotype and genotype
B) The brothers have different genotypes and phenotypes
C) The brothers have the same phenotype but different genotypes
D) The brothers have the same genotype but different phenotypes
Answer:
C
Explanation:
PLEASE HELP!!!
Which is an effect of environmental factors on natural selection?
A: the size of cattle increasing as a result of breeding practices
B: the shape of birds bills changing to adapt to the type of food available
C: the size of pinecones increasing to help keep squirrels from eating them
D: the markings of a non-venomous snake changing to look like those of a venomous snake
Answer:
Umm I would think c
Explanation:
ANSWER QUICK! In an experiment, a scientist places human red blood cells in seawater. What changes do you think would be made to the red blood cells due to osmosis? Cite facts about osmosis to support your prediction.
Malaria is caused by plasmodium carried by _____.
mosquitoes
fungi
amoeba
flies
Answer:
mosquitosExplanation:
they carry plasmodium
When can a species develop genetic diversity?
Answer:
over a long period of time ;)
Explanation:
I know this because another answer said this was the answer and it was answer expert verified... ;)
Name the stages of mitosis!
Answer:
Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation:
Answer: Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase
When the trading of equivalent sections of DNA between homologous chromosomes occurs during crossing over, it is called:
A. reciprocal exchange.
B. chromosomal exchange.
C. allele exchange.
D. similar crossing-over.
Answer:
chromosomal exchange i hope it helps you
Where are the 36 ATP come from during cellular respiration?
A. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from Krebs cycle
B. 2 from glycolysis, 2 from Krebs cycle and 32 from electron transport chain
C. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from electron transport chain
D. 2 from oxidation of pyruvate, 2 from Krebs cycle and 32 from electron transport chain
The study of chemistry begins with the basic unit of matter, the ?
a. cell
b. atom
c. nucleus
d. enzyme
Answer:
B
Explanation:
Chemistry starts with the atom as this is the building block of all chemistry.
The cell, nucleus, and enzyme are all part of biology and not chemistry (at this level at least)
Answer:
B. an atom
Explanation:
Hope that helps!
Sarah is heterozygous for type A blood and her husband, Michael, has type B blood. Their child has type O blood. What possible genotypes can Sarah's blood be? *
10 points
AO
BB
AB
BO
Answer:
A0
Explanation:
Sarah A0
How is a spark from touching a doorknob the same as a bolt of lightning
Explanation:
That little spark you get when you touch the doorknob is essentially a miniature lightning bolt. When rain clouds move through the air, they build up positive and negative electric charges (Figure 7). So clouds have static electricity too! And when enough charge builds up, electric charges jump between the cloud and the ground.
Hope this helps you get your answer, but I'm sorry if it doesn't I did my best to sum it up as quickly and simple as I could for you.
In your own words (do not copy and paste from above, or anywhere else), describe the
difference between a gene and an allele?
Answer:
In a more simpler term, the allele is just an variant form of a gene but in a more detailed explanation: each gene stays in a specific place on a chromosome in two copies. One copy inherited from each parent, but the copies or not really the same.
Explanation:
I majored in Biology
PLEASE HELP!!!!
Neurotransmitters can best be described as
A. electrical charges. B. chemical messengers. C. actions. D. reflexes.
what would happen if there was an issue during transcription
What is the answer that matches?
Answer:
carbohydrates
Explanation:
Carbohydrates are the main source of energy for the body. They are the sugars, starches, and dietary fiber that occur in plant foods and dairy products. Carbohydrates are mainly found in plant foods. They also occur in dairy products in the form of a milk sugar called lactose.
HELP ME I WILL GIVE BRAINIST AWANERR AND On a separate sheet of paper, choose three animals, one that lives in water, one that lives on
land, and one that flies. Explain how each one moves and how it is uniquely adapted for
movement within its environment.
Answer and Explanation:
Land - Lion
Water - Sealion
Flies - Bees
Lions have strong retractable jaws that help them eat their prey and that way they adapt to their enviroment.
The Sealion's thick, oily fur and a layer of blubber allow them to keep a high temperature in cold waters.
A Bees body carries an electrostatic charge that attracts pollen and that way they can keep it in them.
Hope this Helps! Have a GREAT day!
3.A subunit of DNA that consists of a sugar, a phosphate,
and a nitrogenous base____
A. Thymine
B. Nucleotide
C. Amino acid
Answer:thymine
Explanation:
thymine is in the DNA
Answer:
Nucleotide
Explanation:
Thymine is a nitrogen base, and amino acid is a building block for protein. A nucleotide is made up of a sugar, a phosphate, and a nitrogenous base.