Answer:
Crossing over is important because it increases genetic diversity.
Explanation:
Crossing over is a process during meiosis that increases the genetic diversity in the offsprings. During this process, a pair of chromosomes interact with each other to swap genes. As a result, the sister chromatids are no longer identical, which causes offsprings to be different from their progenitors. Also, they give diversity to the species since the chromosomes are different.
4. What is an independent variable?
Answer:
Variable we manipulate during experiment. When we graph independent variable it is always on x-axis. most common independent variable includes temperature and time.
Explanation:
Answer:
A variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
In humans blood type is determined by the A B, and O alleles. The A and B alleles are codominant to each other and dominant over the O allele. An individual with the AO genotype and an individual with the BO genotype can produce offspring with which of the following phenotypes?
A. O only
B.A or B only
C A, B, or O only
D.A, B, AB, оr O
Answer:
d. A, B, AB, or O
Explanation:
The parent genotypes are AO and BO. Make a punnett square to see the genotypes of the offspring. I tried to make an example one below, but I suggest you draw one out for yourself.
A O
B AB BO
O AO OO
The four genotypes would be AB, BO, AO, and OO. Because A and B are dominant over the O allele, the phenotypes would just simply AB, B, A, and O.
When An individual with the AO genotype and an individual with the BO genotype can produce offspring so the phenotypes should be A, B, AB, or O.
What is Alleles?It is considered as the two or more genes that are available on the same locus of the chromosome.
Since
A and B are codominant genes.
O is a dominant gene, which can be masked by A and B alleles.
So here The genotype of the offspring can be A, B, AB, or O. It is because of the co-dominance of alleles.
Therefore, the option d is correct.
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identify what soil in aquarium stones represent
ALOT OF POINTS
what amino acid sequence matches this DNA? TTT-AAA
The process in which plants absorb nitrates through their roots is called
a. nitrification.
b. denitrification.
c. assimilation.
d. ammonification.
Today where can continental glaciers be found in
Answer:
polar regions of Greenland and Antarctica
Explanation:
The glaciers of the Antarctic and Greenland ice sheets cannot be spoken of differently than mountain glaciers, as they form ice plateaus that rise high up to 4000 m (with individual peaks up to 5140 m) in Antarctica and 3700 m in Greenland, where the ice overlaps with plateaus and mountain ranges. Antarctic ice cover reaches a thickness of over 4300 m (average 1720 m), Greenland 3400 m (average 2300 m).
which of the following divide by mitosis
prokaryote
chloroplast
mitochondrion
eukaryote
What are the complementary base pairs for the following DNA strand?
AGTGCCATA
Answer:
A = adenine
T = thymine
C = cytosine
G = guanine
Explanation: its right(:
Answer:
TCACGGTAT
Explanation:
The T’s and A’s corresponding just like the Cs and Gs correspond. Think of it as Apple in a tree and car in a garage
What are the different kind of stem cells? Please use in your own words no copy and paste please
Answer:
Embryonic stem cells, Adult stem cells, Induced pluripotent stem cells (iPSCs), Cord blood stem cells , and Amniotic fluid stem cells
Why do kokanee salmon spawn only once?
Answer:
A
Explanation:
Constructing passage ways near the dams to allow to salmon to swim around blocked rivers. The construction of dams in rivers has blocked the path of some salmons returning to spawning grounds. The best way to overcome this is to make the passage ways near the dams to allow salmons to swim in areas which have blocked due to dams. So that salmons can returned to the spawning ground and can spawn which leads to increase in their population.
Answer:
Salmon change color to attract a spawning mate. Pacific salmon use all their energy for returning to their home stream, for making eggs, and digging the nest. ... Unlike Pacific salmon, Atlantic salmon do not die after spawning, so adults can repeat the spawning cycle for several years.
Today the weather is rainy and warm the weather forecast is that it will be cold during the night which will most likely be observed while the front moves through the area
can you explain to me what the answer is
Answer:
D. Lungs
Explanation:
Just from reading this question, I was able to gather that the answer would be Lungs because it is the one body part that would allow amphibians to survive on land. If they just had gills, they would not be able to survive on land because the gills would always require water. Most amphibians do not have fins, and they (particularly frogs) lose their tails after they grow to be adults. So, that is why my answer would be lungs.
Describe an adaptation of the bull kelp for gathering sunlight
Answer:
They have gas filled bulbs in order to stay at the top of the water
Explanation:
hope it helps
Bull kelp has evolved to capture sunlight because they have gas-filled bulbs that allow them to float at the surface of the ocean.
What are Bull kelps?Bull kelp is an annual seaweed, meaning it takes a year to develop from a spore to maturity. It can grow by as much as 10 inches (25.4 cm) in a single day. Bull kelp produces spores in reproductive patches (sori), which are mature enough to fall to the ocean floor.
Bull kelp was particularly useful for making lines for fishing nets, harpoons, and anchors. Dogfish oil, saltwater, and freshwater were used to cure the solid portion of the stipe (the stem portion) close to the bottom, sometimes for as long as a year. Because bull kelp can float at the ocean's surface thanks to gas-filled bulbs, they have developed to absorb sunlight.
Thus, Bull kelp has evolved to capture sunlight because they have gas-filled bulbs that allow them to float at the surface of the ocean.
Learn more about Bull kelp, here:
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A particular triplet of bases in the coding sequences of DNA is AGT. What is the corresponding triplet
in the complementary strand of DNA?
GAC
ОТСА
OUC
TGG
Answer:
TCA
Explanation:
Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide strands that coil to form a double helix structure. These DNA strands are antiparallel (i.e., they run in opposite directions) and complementary because the nucleotide sequence in one DNA strand determines the sequence in the other DNA strand. According to the base pair rules, Adenine (A) always pairs with thymine (T), and Guanine (G) always pairs with Cytosine (C). Therefore, if a DNA strand has the sequence AGT, then the other DNA strand will have the complementary sequence TCA.
What is a dominant gene?
A gene that is identical in most of the world's population.
A gene that does not change from generation to generation.
A gene with a mutation that affects the surrounding genes.
A gene that is always expressed physically when present.
Answer:
1 or A
Explanation:
Don't trust me but that's what i think because dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive.
Below is a list of supplies available in a laboratory
• four flasks with stoppers
• floodlight
• tap water
• graduated cylinders
• small aquarium plants
• four small fish
• bromthymol blue (a chemical indicator
that changes color from blue to yellow as
the level of carbon dioxide in a solution
increases)
The class sets up an experiment with the four flasks as shown.
Pak 100. www.bymel wee plane
Pak 200w, byl Noe 2 mall fish
Pak 100 m. well bromymel e 2 wall fish plant
Pak 100 m. ll. bromyal blue
Which flasks contain organisms undergoing cellular respiration?
Flask 1, 2 and 3
O Flask 1 and 3
O Flask 2 and 3
O None
Answer: Flank 1 and 3
Explanation:
The organisms in flask 1 and 3 undergoes cellular respiration.
What is cellular respiration?Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.
Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.
Cellular respiration is used to generate usable ATP energy in order to support many other reactions in the body.
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I need help please!
1. In guinea pigs, long hair is dominant to short hair. A pure bred short haired guinea pig is bred with a hybrid long haired. What percent of the babies will have Hh as their allies? (use H)
Answer:
50%
Explanation:
So the cross is hh x Hh
Making a punnet square would get Hh,hh,Hh,hh
The percent of babies that will have Hh is 50%
Which of the following statements best describes why Lamarck's theory of evolution was incorrect AND why Darwin's theory of evolution was correct?
A. Lamarck believed that evolution happened very quickly BUT Darwin believed that evolution was a very slow process.
B. Lamarck believed that traits that you learn or develop over time could be passed on BUT Darwin believed you passed on traits you possessed at birth.
C. Lamarck believed that evolution had to be done artificially BUT Darwin believed it only happened naturally.
D. Lamarck believed you passed on traits you possessed at birth BUT Darwin believed that traits that you learn or develop over time could be passed on to your offspring.
Answer:
B.
Explanation:
Lamarck's theory basically says that traits that are developed over time can be passed on (Theory of Inheritance of Acquired Characteristics), which is incorrect. Darwin is correct that only traits possessed at birth can be passed on.
Lamarck believes that the traits which you learn or develop over time could be passed on. As per Darwin believed that you passed on the traits you possessed at birth. This the option B is correct.
What is the Lamarck theory of evolution ?The theory of Lamarck is based on the aspects of the evolution and is the principle that the physical changes in an organism during their lifetime as the development of the organs.
The use of the parts increases and can be transmitted to the offspring. The theory focuses on the use and disuse, an organism that is driven by greater complexity, effects of the environment, and needs.
Find out more information about the Lamarck's theory.
brainly.com/question/1620116.
When somebody runs, what is the energy transformation?
Answer:6
Explanation:
)62
Anyone can help me with this one???
Answer:
D. Increased precipitation and increased slope
Explanation:
An increase of precipitatioon will overflow a stream, causing it to mover faster, while an increase of slope will cause gravity to pull the slope down faster.
Define ethnicity in your own words best one gets 20 points
ALOT OF POINTS PLEADE HELP
WHAT IS THE ANTICODON THAT WOULD PAIR UP WITH THE MRNA CODON UAG ?
Answer:
At one end, the tRNA has an anticodon of 3'-UAC-5', and it binds to a codon in an mRNA that has a sequence of 5'-AUG-3' through complementary base pairing. The other end of the tRNA carries the amino acid methionine (Met), which is the the amino acid specified by the mRNA codon AUG.
Explanation:
not sure if this is right.
Answer:
I guess tRNA
Explanation:
It is determined that Elsa is experiencing beta-thalassemia major. Which of the following statements is not true regarding this diagnosis?
A) The cause of beta-thalassemia is genetic.
B) Beta-thalassemia major is a grave condition and has a high mortality rate.
C) Beta-thalassemia major is often treated with blood transfusions.
D) Because beta-thalassemia is an x-linked trait, it affects males more often than females.
Answer:
The correct option is D
Explanation:
Beta-thalassemia major is a hereditary disorder that usually causes severe anaemia. This mutation/disorder eventually leads to death if untreated especially during in the first two years of infancy. The treatment usually involves the transfusion of blood to clear the phenotypic blockage caused by the mutation. However, it requires both alleles to have the thalessemia mutation for a patient to be said to have beta-thalassemia major. Hence, it is not true that it involves just the x allele and thus affects males more often than females.
Dorothy works as a medicinal chemist in a pharmaceutical company. What could one of her assignments be?A. To test a new X-ray equipment B. To develop new surgical techniques C. To design new software that helps in the research of new molecules D. To research molecules in spider venom for new pain medicine
Answer:
D. To research molecules in spider venom for new pain medicine.
Explanation:
If she's a medicinal chemist, D is the only answer that refers to chemistry (researching molecules). The others are software/engineering/manufacturing-type roles.
Please help
I need help with this question
2. In dogs, there is a hereditary type of deafness caused by a recessive gene. Two dogs who carry the
gene for deafness but have normal hearing are mated. What are the possible genotypes and phenotypes o
f their offspring and the percent chance for each?
Answer:
the Punnet square is
D d
D DD Dd
d Dd dd
the chart is
DD deafness 25%
Dd maybe deaf 50%
dd not deaf 25%
I'm not 100% sure this is right, but I think it is, hope this helps
What is the Big Bang ? Someone describe it for me it's for an essay please or break it down !
Answer:
The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then expanded over the next 13.8 billion years to the cosmos that we know today
Explanation:
i
[tex]\huge\purple{Hi!}[/tex]
The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching.
which of the following is the first trophic level in every ecosystem ?
A tertiary consumer
B primary consumer
C autotroph
D heterotroph
Answer: Cycling of Matter and Energy Quick Check
1.While detritivores feed on dead organic matter, decomposers actually break down dead or decaying organisms.
2.Food webs are more complex than simple food chains.
3.heterotrophs
4.autotroph
5.Matter and energy are cycled through the ecosystem.
Explanation:
:)
The first trophic level in every ecosystem is autotroph.
WHAT IS TROPHIC LEVEL:Trophic level is the position of an organism in the flow of energy within an ecosystem. In an ecosystem, energy flow begins with a set of organisms called producers or autotrophs. Examples of autotrophs are green plants, algae etc.Therefore, the first trophic level in every ecosystem is autotroph.
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Plastic can biodegrade; it breaks down and decomposes easily
True or false
Answer:
true
Explanation:
it can but it take up to 1,000 years for plastic to decompose in landfills. The plastic bags we use daily take 10 years to 1,000 years to decompose, while plastic bottles can take 450 years or more.
Identify and label the parts of the human ear. Subject: Anatomy
Answer: so the answer is D
Explanation:
Answer:
below in the picture!