Answer:
b. 6 billion
Explanation:
Answer:
7 billion people is the answer not 6
The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominant allele T and the inability to taste by the recessive allele t. Suppose two heterozygous tasters (Tt) have a large family. What is the likelihood that their first child will be a taster
Answer:
75%
Explanation:
This question involves a single gene coding for the ability to taste the chemical PTC. The allele coding for the ability to taste (T) is dominant over the allele coding for the inability to taste (t). This means that an heterozygous individual will have the ability to taste PTC.
According to this question, if two heterozygous tasters (Tt) cross to have a large family i.e. Tt × Tt, the following gametes will be produced by each parent;
Tt = T and t
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
TT, Tt, Tt - Tasters (3/4 or 75%)
tt - Non-taster (1/4 or 25%)
Note that based on the question asked, there is a 75% probability that their first child will be a taster because there is equal segregation of alleles into gametes.
which of the following is NOT a nucleic acid ?
a. DNA
b. mRNA
c. tRNA
d. Protein
Answer:
reverse transcriptase
Explanation:
The following is NOT a nucleic acid is - d. protein as it is a different macronutrient or macromolecule to nucleic acid.
Nucleic acids are macromolecules of a special class found in all living organisms and also in viruses. There are two types of major nucleic acids, DNA or deoxyribose nucleic acid and RNA or ribose nucleic acid.
Nucleic acids play a role in genetic materialnucleic acid helps in protein synthesisRNA is mainly three types mRNA, messenger RNA, tRNA transfer RNA, and rRNA ribosomal RNA.DNA is normally double-strandedProtein on other hand is a different class of macromolecules that perform many roles in the cell such as, structure, function, and regulation.
Thus, the correct answer is - D. protein.
Learn more about protein:
https://brainly.com/question/22241855
What is one reason why rock layers are not horizontal?
They were formed at an angle.
They were formed veritcally.
The area was once covered by water.
A force pushed the rock layers after they were formed.
Answer:
the last one, as they would be pushed together either going up or down when tectonic plates shift.
Explanation:
Answer: A force pushed the rock layers after they were formed.
Explanation:
where are the heaviest elements found on the periodic table?
Answer:
hope it helps
Explanation:
The heaviest element found in any appreciable amount in nature is uranium, atomic number 92. (The atomic number refers to the number of protons in an atom's nucleus.) Beyond that, scientists must create new elements in accelerators, usually by smashing a beam of light atoms into a target of heavy atoms.
why are plastids called kitchen of the cell
Answer:
Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients.
Explanation:
I hope this helps!
Answer:Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients, which makes it more better for animals to eat. And the plant provides healthy nutrients for them.
What does nitrate do to eluglena plz look at the picture but if the eluglena was increased would chloroplasts decrease?
Answer:
Euglena have been shown to successfully process nitrates as a form of nitrogen. Chloroplasts within the euglena trap sunlight that is used for photosynthesis So YES the chloroplasts would DECREASE. There is a blance to everything and if that blance is messed up then the plant will soon feel somthing wrong. If that makes since.
Explanation:
A guinea pig with black eyes (B b) is crossed with one that also has black eyes (B b).
Answer:
then we get same type of animal whom have also black eyes (Bb)..
please help i’ll mark u as the brain thing !!
2. Lines 25–33: What examples of sentence structure and wording help create the style of this essay? Are the sentences long and filled with details, or are they short and crisp? Is the grammar formal or informal? Give an example.
Answer:
There are many important pieces that together make up a writer's style; like tone, word choice, grammar, language, descriptive technique, and so on. Style is also what determines the mood of a piece of literature, so its importance is huge across all genres.
Explanation:
Does this help at all??
which of the following is included in the biosphere a the atmosphere gases me the hydrosphere water , lithosphere rock and mineral or D all of these are included in the biosphere
Answer:
D, all of these are included in the biosphere
How was Hawaii formed, and how does this provide evidence for convection happening?
HELP PLEASE
By many volcanic eruptions eventually forming an island.
How does working alone versus working in a group relate to growth and development, a characteristic of living things
this type of energy put things in motion
Answer:
kinetic energy I think
Explanation:
not 100%
6. In a population of angiosperms in Hardy-Weinberg equilibrium, the allele, C, conferring red flowers is completely dominant to the allele, c, causing white flowers. If allele C is at frequency 0.7 in the population, what is the expected frequency of red flowered plants
Answer:
The correct answer is - 0.91.
Explanation:
Given that C is dominant over c with an allelic frequency of 0.7. The sum of the frequency of dominant alleles and the frequency of heterozygous alleles in this H-W population of angiosperm will be the expected frequency of red-flowered plants.
The frequency of C = 0.7
(p² = dominant allele frequency)
Then, the frequency of dominant genotype CC would be = 0.7×0.7 (p² = dominant allele frequency)
As we know that P + q = 1
then q = 1 - p
q (frequency of recessive allele) - 1 - 0.7
q = 0.3
Then frequency of heterozygous genotype Cc= 2pq
= 2×0.7×0.3
= 0.42
The frequency of red flowers = freq of CC + freq of Cc
= 0.49 + 0.42
= 0.91
Given that C is dominant over c with the frequency of 0.7
The sum of the frequency of dominant allele and heterozygous alleles in this H-W population of angiosperms expected frequency of red-flowered plants.
frequency of C = 0.7
[tex]p^{2} =dominant allele[/tex]
CC= 0.7 × 0.7
[tex]p+q =1\\q= 1- p\\= -1-0.7\\=0.3\\[/tex]
Then frequency of genoype = Cc= 2pq
= 2×0.7×0.3
= 0.42
[tex]frequency of red flower = freq of CC + freq of Cc[/tex]
= 0.49 + 0.42
= 0.91.
What is Hardy-Weinberg equilibrium?It is a principle that states genetic variation in a population will remain constant from one generation to the next generation in the absence of disturbing factors.
Hence concluded that the frequency of red-flowered plants = 0.91
To know more about Hardy-Weinberg equilibrium refer to the link :
https://brainly.com/question/3406634
Which situation could cause an ecosystem to lose its equilibrium?
A. Competition among species
B. Interdependence among species
C. Arrival of a nonnative species
D. An increase in the population of a keystone species
Answer: C
Explanation: the ecosystem is metastable, so an increase in the keystone species would be accommodated. Introductionof a nonnative species is likely to generate significant biotic change to the environment.
Which of the following is NOT involved in photosynthesis or cellular respiration?
a
cytokinins
b
chlorophyll
c
carbon dioxide
d
water
Answer:
a
Explanation:
Cytokinins are not involved in photosynthesis or cellular respiration. They are plant hormones that help regulate cell division and growth. On the other hand, chlorophyll, carbon dioxide, and water are all involved in photosynthesis and/or cellular respiration. The correct option is A.
What are Cytokinins?Cytokinins are plant growth hormones that stimulate cell division and delay senescence. They play a role in plant growth and development, but they are not involved in photosynthesis or cellular respiration. On the other hand, chlorophyll, carbon dioxide, and water are all involved in photosynthesis.
Chlorophyll is a pigment that absorbs light energy and converts it into chemical energy, while carbon dioxide and water are used to make glucose and oxygen through the process of photosynthesis.
Cellular respiration is the process by which cells convert glucose and oxygen into energy. Both carbon dioxide and water are produced as byproducts of cellular respiration. Therefore, all the options except cytokinins are involved in either photosynthesis or cellular respiration.
Therefore, the correct option is A.
Learn more about Cytokinins here:
https://brainly.com/question/30829965
#SPJ3
Frogs, lizards, and birds all have simular arrangment of bones n thier limbs. BOth thier arms and legs have one bone at the top, two bones at the bottom, little bones and then fingers or toes. What does the similarity o the bone struture suggest about these animals?
A. They have a common ancestar
B. They are comparable in size as adults
C. They evolved at the same time
D. They move in the same way
The similarity of the bone structure suggest about these animals should be that they evolved at the same time
What is bone structure?Bones are considered to be the living tissue that comprise of the own blood vessels, and should be made of the various cell, proteins, minerals, etc. In this it enables them for growing, transformation, and repair via the life.
Since both arm and legs should have one bone at the top, so here we considered the option c should be right.
Learn more about bone here: https://brainly.com/question/11977930
Plants get their energy from the sun through photosynthesis. This energy is trapped in bonds of complex compounds the plants create from carbon dioxide and water. The plants are eaten by animals, and the energy is used for heat and movement. What is the energy transfer that is conducted inside an animal
Answer:
Explanation:
Cellular Respiration.
People try to conserve some resources, like fossil fuels, because they are
not replaceable. Why can't these resources be replaced?
A. They must be transported long distances
B. Processes to make them take longer than a human's lifetime
C.No one can afford to buy more of them
D. It is impossible to extract more from the Earth
Answer:
B. processes to make them take longer than a human's lifetime
Which of the following describes the different classifications of consumers in an ecosystems.
A. Herbivores eat producers. Carnivores eat other consumers. Omnivores eat producers and other consumers.
B. Herbivores are always plants. Carnivores are always animals. Omnivores are always humans.
C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
D. Herbivores only live in aquatic ecosystems. Carnivores and omnivores only live in terrestrial ecosystems.
Please Answer fast!
Answer:
Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
Explanation:
we got three types of consumers :
primary consumers secondary consumers tertiary consumersThe correct answer is C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
There are 4 types of consumers :
1. Omnivores are also primary consumers.
2. Carnivores are primary consumers.
3. Herbivores are tertiary consumers.
4. Decomposers are known to be fungi, bacteria, invertebrates.
What are ecosystems?An ecosystem is an area where all living organisms including plants, animals, Homosapiens, microorganisms. It also has abiotic and biotic factors.
Hence concluded that C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers, which describes the different classifications of consumers in ecosystems.
To know more about consumers refer to the link :
https://brainly.com/question/1245771
Punnett squares provide an easy way to predict the possible genotypes for an offspring, but it is not practical to perform a Punnett square analysis on all possible combinations of all members of a population to predict what the population might look like in the future.
a. True
b. False
Answer:
True
Explanation:
There are certain limitations associated with the Punnett Squares. They are not useful in case of complex genetic inheritance such as linkage between two genes. In case of linkages it becomes difficult to estimate the distribution of genotypes and phenotypes. For example in case of Nail-patella Syndrome and gene associated with blood group two genes lie on the same chromosome in close vicinity and hence there are high chances of inheritance of these traits in the offspring from the parent thereby causing random distribution of the two traits. This random distribution cannot be captured through punnet square.
The same problem is associated in case where a single gene is determined by multiple genes with graded effects of each gene.
how many continets are found on Earth
Answer:
A lot
Explanation:
am playing there around 195 counties and 7 continets my bad
Answer:
There are seven continents in the world/on earth.
Explanation:
There are 7 total continents in the world, which are - Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America.
If you were to start at the base of a mountain and climb it all the way to the top, how would the climate change?
A The climate would get colder and drier as you go up the mountain.
B The climate would get warmer and wetter as you go up the mountain.
C The climate would stay the same because you are in the same climate zone.
D The climate would be similar to a tropical climate zone as you go up the mountain.
The climate would get colder and drier as we go up the mountain. So, the correct option is A.
What is the effect of altitude on the atmosphere?When altitude increases, the amount of gas molecules in the air decreases, so the air becomes less dense than air closer to sea level, which is what meteorologists and climbers mean by "thin air". Thinner air exerts less pressure than air at lower altitudes.
Most of the gas molecules in the atmosphere are pulled closer to the Earth's surface by gravity, so gas particles are denser near the surface, so with more gas particles in a given volume, there are more collisions of particles and therefore more pressure.
Thus, the climate would get colder and drier as we go up the mountain. So, the correct option is A.
Learn more about climate change due to altitude, here:
brainly.com/question/463893
#SPJ6
can you pls tell me I am on a test
Answer:
I believe it is C
Explanation:
because thr oots absorn water from the soil
Answer:
the answer is C
Explanation:
roots absorb water from soil hope this helps
Which cell organelle supports the cell and is made of cellulose? (This structure is made out of a non-living material and found only in plant cells)?A-cell membrane
B-cell wall C-ribosome
D-nucleus
How does the speed of flowing water affect its ability to erode
HELP PLZZZ!!!
Answer:
Moving water also picks up and carries particles of soil and rock. The ability to erode is affected by the velocity, or speed, of the water. ... As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.Explanation:
Through the process of transformation, bacteria cells can take up plasmids that contain recombinant DNA
TRUE or FALSE
Answer:
true
Explanation:
What is the nutrient source for some fungi?
1. Sunlight
2. Oxygen
3. Carbon dioxide
4. Dead organisms
Answer:
It's four 4. Dead organisms
Hope this helped
Hope this helped ALL THE BEST !!
How many groups of protists are there
Answer:
3 groups.
Explanation:
Each of these three groups have multicellular species and the green and red algae have many single-celled species. The land plants are not considered protists.
Answer:
3 groups
Explanation:
Albinism is a somatic recessive condition resulting from the inability to produce the dark pigment melanin in skin and hair. A man and woman with normal skin pigmentation have two children. The man has one albino parent; the woman has parents with normal pigmentation, but an albino brother. a. What is the probability that at least one of the children is albino
Answer:
There is 1/6 of the probability that at least one of the children is albino.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
Question 10
6.7 pts
Which of the following most likely happens in the cells of a person running a
marathon?
The respiration rate increases to produce more ATP.
The cell division rate increases to produce more muscle fibers
The photosynthesis rate increases to produce more sugars
The replication rate increases to produce more DNA
Answer:
The respiration rate increases to produce more ATP.
Explanation:
Running requires energy so the cells need to make more ATP through cellular respiration.