Answer:
#1.The force of gravity causes it to accelerate
Explanation:
As acceleration is the rate of change in velocity of an object with respect to time. ... The acceleration of penny is due to the force of gravity. Thus, we can conclude that the force of gravity causes it to accelerate.
Which of the following best describes the genetic complement in each
daughter cell at the conclusion of meiosis?
A. A haploid set of chromosomes that are a recombination of the
parents' chromosomes
B. A diploid set of chromosomes that are identical to the parents'
chromosomes
C. A diploid set of chromosomes identical to the other daughter cells'
chromosomes
D. A haploid set of chromosomes that are identical to the parents'
chromosomes
Answer:
A
Explanation:
Meiosis end in four daughter cells that are haploid and contain half the chromosomes as the parent cell and genetically different from the parent cell and from each other, so A would be the right answer.
A haploid set of chromosomes that are a recombination of the parents' chromosomes best describes the genetic complement in each daughter cell at the conclusion of meiosis.
What do you mean by meiosis?Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells.
Moreover, meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
Meiosis is important for three main reasons: it allows sexual reproduction of diploid organisms, it enables genetic diversity, and it aids the repair of genetic defects.
Learn more about meiosis:
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With regard to iodine, which is hypertonic? [beaker/ tube]
With regard to starch, which is hypertonic? [beaker/ tube]
Needs to be in within a few hours, please help
Answer:
With regard to iodine, beaker is hypertonic whereas with regard to starch, tube is hypertonic.
Explanation:
The beaker has higher amount of iodine solution than the tube so the beaker is considered as hypertonic solution while on the other hand, the tube has more starch concentration than the beaker so the tube is considered as hypertonic solution. In hypertonic solution, the concentration of solutes are higher than the surrounding environment or another solution. So that's why with regard to iodine, beaker is hypertonic whereas with regard to starch, tube is hypertonic.
Who was the first scientist to monitor the movement of the stars and moon?
Aristotle
Hedu’Anna
Archimedes
Copernicus
Answer:
Aristotle
Explanation:
Aristotle created his own system for mapping the stars first, the others studied and discovered things in different subjects. :)
Answer:
Isn't it Galileo.
I think it is Galileo
How can Punnett Squares help us determine genotypic and phenotypic ratios from a genetic cross?
( Please put it in a complete sentence has to be 4-5 sentence.... i will give brainly)
What are the Amino acids of the mutated DNA sequence: TAC ATC TTG GCG ACG ACT
Answer:
Tyr Ile Leu Ala Thr Thr
Explanation:
In a DNA sequence, a pair of three bases form a codon that codes one particular amino acid in the protein. Proteins are consist of 20 amino acids and these amino acids are coded by a pair of three bases.
There are four bases in a DNA - Thymine (T), Adenine(A), Guanine(G) and Cytosine(C).
The given mutated DNA sequence will also code for some amino acid, that is as follows:
TAC - Tyr (Tyrosine)
ATC - Ile (Isoleucine)
TTG - Leu (Leucine)
GCG - Ala (Alanine)
ACG - Thr (Threonine)
ACT - Thr (Threonine)
Thus, The mutated DNA sequence TAC ATC TTG GCG ACG ACT codes for Tyr Ile Leu Ala Thr Thr.
Biologists have been able to keep isolated chloroplasts or
mitochondria for a few hours or days. can these structures be
considered alive?
Answer:
Isolated chloroplasts or mitochondria cannot be considered alive, because although they can survive while isolated for a few hours or days and they resemble that of an independent cell (which are alive), they don't metabolise energy, and they don't have cells.
What is the main cause of pollution
Answer:
Humans
Explanation:
The main cause of pollution is the burning of fuel, over-use of fertilizers and pesticides, carelessness, and the improper disposal of waste. And who does this? Not casper, not pennywise, not animals, but us humans. So we are the main reasons why pollution exist.
You can just write what causes pollution (the underlined), you dont need to write about who causes it.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
HEEELPPPP MEEEE ILL MARKKK YOOUUU BRRAAINNNLYYY
Mendel studied seven traits in pea plants. One of the monohybrid crosses he made was between plants with round seeds and plants with wrinkled seeds.
What was a conclusion Mendel drew from the F1 generation of this cross?
Explanation:
Traits are inherited in discrete units, and are not the results of "blending." ... traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.
Answer:
The dominant factor, or allele, is for round seeds.
Explanation:
The factors (or alleles) don't disappear when two species are crossed, so "the factors or alleles for round seeds disappear completely from the plants" and "the factors or alleles for wrinkled seeds disappear completely from the plants" are both incorrect. From the drawing, we can see that the F1 generation is a round seed, meaning the dominant factor is for round seeds. Hope this helps!
Enviromental quality refers to the quality of the total enviroment, including both the natural and the __ enviroment ?
Answer:
Environmental quality refers to the quality of the total environment, including both the natural and the built environment.
Natural Environment- Plants, animals, natural resources, etc.
Built Environment- Man-made structures and facilities.
Let me know if this helps!
What is an observation? What do you use to make an observation?
Answer: we can make observations directly by seeing, feeling, hearing, and smelling, but we can also extend and refine our basic senses with tools: thermometers, microscopes, telescopes, radar, radiation sensors, X-ray crystallography, mass spectroscopy, etc. And these tools do a better job of observing than we can!
The following is the results of a genotype being "foiled" for a dihybrid cross: BS | Bs | bS | bs
Determine the parents genotype
A) BBSS
B) BBss
C) BbSs
D) BbSS
Answer:
C. BbSs
Explanation:
The foiled results of the genotype include both capital and lowercase versions of both letters, b and s.
This means the genotype has to be heterozygous for both the B and S traits, since the foiled results have both dominant and recessive alleles.
So, the genotype must be C, BbSs
The foiled results of the genotype for the offsprings include BS | Bs | bS | bs.
The parent's genotype will then be BbSs.
The genotype of both parents have to be heterozygous as a result of the
presence of its forms in the B and S traits. There is the presence of the
dominant (B,S) and recessive traits (bs).
The genotypes of the parent will however have both traits in them which
translates to the option C) BbSs being the most appropriate.
Read more on https://brainly.com/question/21102431
the cross between two tall garden pea plants having a genotype of Tt produces
Answer:
So, the correct option is ‘I, II’.
Explanation:
So, the correct option is ‘I, II’.
8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
Draw the punnett square and list the genotypes and phenotypes of the offspring.
I
Genotypes of offspring:
Phenotypes of offspring:
Plz help me
Answer:
Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.
Explanation:
Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.
The cross can be represented by a Punnett Square:
Bb X Bb cross
alleles B b
B BB Bb
b Bb bb
Where the result is:
Genotypes:
Bb, 50% BB, 25% bb, 25%Phenotypes:
Brown feathers, 75% Red feathers, 25%.In this case, the probability of having brown or red feathers is 3:1.
WILL GIVE BRAINLIEST IF RIGHT
Look at the picture below. What type of weathering do you think caused this rock formation?
Answer:
Like a gate or a sleeping man on seeing from opposite side.
What is a mutation that stops the production of a protein considered
Answer:
Explanation:
A nonsense mutation is a genetic mutation in a DNA sequence that results in a shorter, unfinished protein product. DNA is a chain of many smaller molecules called nucleotides.
What are the functions of carbohydrates, peripheral proteins, and cholesterol in the cell membrane?
Answer:
Some of these proteins serve to transport materials into or out of the cell. Carbohydrates are attached to some of the proteins and lipids on the outward-facing surface of the membrane. These form complexes that function to identify the cell to other cells.
Suppose that to snow leopard’s, heterozygous for both traits meet. Suppose further that in the female, the two dominant alleles are on the same chromosome of the homologous pair, while in the mail, each chromosome of the pair has one dominant and one recessive allele. What is the expected phenotypic ratio of their children?
Complete question:
Snow leopards live in the high reaches of the Himalayas and have several adaptations to deal with living most of the time in snow. They have wide paws with hair between the toes to allow them to run on top of the snow crust. Assume that wide paws (W) and hair between the toes (T) are both dominant traits and are on the same chromosome. Suppose that two snow leopards, heterozygous for both traits, mate. Suppose further that in the female, the two dominant alleles are on the same chromosome of the homologous pair, while in the male, each chromosome of the pair has one dominant and one recessive allele.
1) What percentage of each of the following genotypes will be produced?
WWTT:WWTt: WWtt:WwTT:WwTt:Wwtt: wwTT:wwTt:wwtt2) How many of the offspring (assume 4 cubs) will have narrow paws with hair between the toes?
Answer:
1) Percentage of each of the following genotypes
WWTT: 0WWTt: 1/4 = 25% WWtt: 0WwTT: 1/4 = 25%WwTt: 0Wwtt: 1/4 = 25%wwTT: 0wwTt:1/4 = 25%wwtt: 02) Offspring with narrow pows: 1 of four individuals.
Explanation:
Available data:
wide paws (W) and hair between the toes (T) are both dominant traitsnarrow paws (ww) and no hair (tt) are bothe recessive traitsBoth traits are on the same chromosome.Female: W and T on the same chromosome of the homologous pair, w and t on the other chromosome.Male: W and t on the same chromosome of the homologous pair, w and T on the other chromosome.Cross: Between two heterozygous individuals
Parental) WwTt x WwTt
Sex) Female Male
Gametes) WT wt Wt wT
Punnett square)
WT wt
Wt WWTt Wwtt
wT WwTT wwTt
F1) Genotypes:
1/4 WWTt1/4 Wwtt1/4 WwTT1/4 wwTtPhenotypes:
2/4 = 1/2 = 50% wide paws with hair (W-T-)1/4 = 25% wide paws with no hair (W-tt)1/4 = 25% narrow paws with hair (wwT-)How were great civilizations able to thrive with genetics
(GIVING BRAINLIEST!!)
How does condensation occur?
A) Water vapor rises from Earth's surface into the sky.
B) Water vapor cools and forms water droplets in clouds.
C) Water droplets fall to the ground from the sky.
D) Water runs across Earth's surface.
Explain why
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
Help me out please❗️❗️
what is the function of RNA
Answer:
The central dogma of molecular biology suggests that the primary role of RNA is to convert the information stored in DNA into proteins.
-- please mark the brainliest and click the thanks button if correct :)
Answer:
Ribonucleic acid is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes.
Explanation:
What are five similarities and five differences between sharks and bony fishes?
[tex]\Huge\text{Pisces or Fishes}[/tex]
Pisces or Class Fish is the largest group of chordates which includes 25000 species of fishes. Study of fishes is called Ichthyology.
Fish is an aquatic gill breathing gnathostomates whose stramlined body is provided with paired fins and covered over dermal scales.
Super Class pisces is divided into two classes:
Chondrichthyes Osteichthyes _____________________________________
[tex]\Huge\textbf{Chondrichthyes}[/tex]
Chondrichthyes are Cartilagineous fishes. This class is also called Elasmobronchi. It has exclusively marine fishes with endoskeleton made of cartilage. Their skin has tiny shark enamel coated denticles called Placoid Scales. They are heterocercal and Mouth is present at ventral to tail fins. They have exposed 5 gills on each sides.
Example Shark, Ray fishes, Dog dish etc
_____________________________________[tex]\Huge\textbf{Osteichthyes}[/tex]
These fishes are Bony Fishes. This group is also called Teleostomi, They are found in both marine and fresh water. Their endoskeleton is made up of bones. Their skin has thin bony plates called cycloid or ctenoid. Their gills are covered with outer skin called operculum. Tain fin is homocercal and mouth is present at anterior tip.
Examples Sea Horse, Gold fish, Eel etc
_____________________________________[tex]\huge\text{Similarities}[/tex]They have gill to breath Streamlined body to move in fast moving water All fishes are cold-blooded. Fins are present for locomotion They have great sense of smell They have air bladder to be bouncy[tex]\Huge\text{Dissimilarities}[/tex]
Chondrichthyes are exclusively marine fishes while Osteichthyes are both fresh water and marine water living.The skeleton of Chondrichthyes is made of cartilage while the skeleton of Osteichthyes is made of bones.The gills of Chondrichthyes is NOT covered with operculum while the gills of Osteichthyes are covered with outer skin operculum. The skin of Chondrichthyes has tiny shark enamel coated denticles called Placoid Scales while the skin of Osteichthyes has thin bony plates called cycloid or ctenoid.The tail of Chondrichthyes is Heterocercal and mouth is ventral to the tail fins while the tail of Osteichthyes is homocercal and the mouth is present at anterior tip._____________________________________Best Regards,'Borz'What is the number of chromosomes made at the end of mitosis and meiosis?
Answer:
15 chromosones
Explanation:
The taxonomic classification that contains the most organisms and is the MOST inclusive is
Answer:
Domain
Explanation:
A domain is the most inclusive of the levels
what biotic factors in the taiga are different from the biotic factors in the rainforest
Answer:
flora and fauna and also some types of invasive species
A building company purchases a large plot of forest-like land with the intention of building a new residential neighborhood. This forest-like area is home to 2 types of squirrels: tree squirrels and ground squirrels. Tree squirrels have bushy tails, longer legs, sharp claws for climbing, and large ears. Ground squirrels have shorter legs, less sharp claws, and less bushy fur. In order to build the houses, the company knocks down 80% of the trees. Which squirrel population was better fit for the change of the environment
a Ground squirrels because they did not require trees for survival.
b Tree squirrels because they require trees for survival.
c Ground squirrels because they can use their sharp claws to climb trees.
d Tree squirrels because they can use their sharp claws to burrow into the ground.
The word physiology comes from __________ attempt to distinguish between natural and supernatural causes of things.
Answer:
Harvey
Explanation:
The study of specific characteristic and mechanism of animals or plants that makes it to exits living organisms is called physiology. Thus this could be plant, animals insects physiology.
In 1628 Harvey for published a book, titled An anatomical exercise on the motion of the heart and blood in living beings. That was the first time the word physiology was used.
He used the tam to distinguish between natural and supernatural causes of things in the book.
The publication of this book formed the golden age of physiology in Nederland as early s 1628
1. What does the cell wall surround?
Answer: hi there, the answer to the question would be ( the plasma membrane)
hope this helps :)
Explanation: the cell membrane surrounds the plasma membrane and administers protection and support.
Please answer the questions ill mark you brainlist i need it asap for my homework please
Answer: Sensory Neurone and a synapse
[tex]\Huge\text{1) Sensory Neurons}\\\\\Huge\text{2) Synapse}[/tex]
_____________________________________[tex]\Huge\textbf{Reflex Action:}[/tex]Reflex action is a involuntary and instantaneous action in response to a stimulus acting over a reflex arc. Some reflex actions are inherited and innate while other are acquired through learning processes. These reflex actions are performed without the will of the animal & generally involve minimum number of neurons.
Reflex Arc:Many neurons work in group called reflex arc, There must be atleast two neurons in a reflex arc. A reflex arc is made possibly a shortest pathway so the body acts on an impulse before it reaches the brain, and usually it is coordinated by spinal cord and brain-stem.
The parts of reflex arc is given as,
A receptor, a sense organ in the skin muscle or other organ.An afferent or sensory neuron, which carries impulses towards the central nervous system.The central nervous system, where a synaptic connections are made between the sensory neuron and the inter-neurons.The efferent or motor neurons which makes a synaptic connection with the inter neuron and carries impulses out from the central nervous system.The effector, by which the animal responds to the environmental changes.The change in the body is detected by receptors which gives the information to the brain or spinal cord which is the control center via the sensory neuron. The control center decides the appropriate response and sends it to the effector via motor neuron which plays its role.
_____________________________________[tex]\Large\textbf{Synapse:}[/tex]
a synapse is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next. Synapses are found where nerve cells connect with other nerve cells or the muscle.
_____________________________________Best Regards,'Borz'IF A CUBE IS 1CM ON A SIDE, CALCULATE ITS SURFACE AREA. HINT WRITE 2 points
OUT FORMULA FOR SURFACE AREA OF A CUBE.*
8CM2
8CM3
6CM3
6CM2
2 points
FACURE IS 1CM ON A SIDE, CALCULATE ITS VOLUME. HINT WRITE OUT
Answer:
Surface area of the cube = 6cm²
Volume of the cube = 1cm³
Explanation:
The surface area of a cube, which refers to the sum of all the areas of the faces of the cube can be calculated using the formula:
S.A = 6 × a²
That is; a² + a² + a² + a² + a² + a²
Where;
a = length of a side of a cube
a² = area of one side of a cube
Note that, a cube has 6 faces
According to this question, a cube has a length of 1cm on each side.
Hence, S.A = 6 × 1²
S.A = 6 × 1
S.A = 6cm²
Volume of the cube can be calculated using the formula: a³
Where a = 1
Volume = 1 × 1 × 1
Volume = 1cm³
