Answer:
A solitary called life form would have an external covering in particular. Clarification: Having a brain, legs and inner organs is excessively perplexing for a unicellular organism(organisms with one cell)
Explanation:
What is a SNP mutation?
Answer:
Explanation:
Single nucleotide polymorphisms, frequently called SNPs (pronounced “snips”), are the most common type of genetic variation among people. Each SNP represents a difference in a single DNA building block, called a nucleotide.Most commonly, these variations are found in the DNA between genes.
single nucleotide polymorphism
A single nucleotide polymorphism, or SNP (pronounced "snip"), is a variation at a single position in a DNA sequence among individuals.
Each SNP represents a difference in a single DNA building block, called a nucleotide. For example, a SNP may replace the nucleotide cytosine (C) with the nucleotide thymine (T) in a certain stretch of DNA. Most commonly, these variations are found in the DNA between genes.
(hope this helps can i plz have brainlist :D hehe)
In order to improve crop yields, the Green Revolution employs improved irrigation techniques, the addition of
synthetic fertilizers, new crop varieties, and mechanization.
All of the following accurately describe mechanization EXCEPT
Answer:
Mechanization is used for tillage practices.
Explanation:
Mechanization is an important factor that contributes in the Green Revolution because the using machines for the softening of soil enhances root penetration in the soil as well as aeration in the soil. Mechanization involves all the machines that is used for tillage practices such as cultivator, rotavator, chisel plough etc. The use of these machines enhances production of the crop that leads to Green Revolution.
Suppose Stephen breeds flowers and wants to optimize production of offspring with both short stems and white flowers, which are coded for by two genes with the recessive alleles t and p, respectively. In flowers, T codes for tall stems and P codes for purple flowers. Stephen crosses two heterozygotes that produce 544 offspring. How many of these 544 offspring are predicted to have both short stems and white flowers
Answer:
From the whole progeny of 544 plants, 34 individuals are expected to have short stems and white flowers.
Explanation:
Available data:
short stems coded for by recessive allele twhite flowers coded for by recessive allele pT codes for tall stemsP codes for purple flowersCross between two heterozygous individualsTotal number of the progeny 544In a dihybrid cross, it is expected to get a phenotypic ratio of 9:3:3:1
Cross:
Parentals) TtPp x TtPp
Gametes) TP Tp tP tp
TP Tp tP tp
Punnett square)
TP Tp tP tp
TP TTPP TTPp TtPP TtPp
Tp TTPp TTpp TtPp Ttpp
tP TtPP TtPp ttPP ttPp
tp TtPp Ttpp ttPp ttpp
F1)
9/16 T-P- 3/16 T-pp3/16 ttP-1/16 ttpp(Note: The "-" symbol represents either a dominant allele or a recessive one)
From these possible genotypes and phenotypes, we can get their corresponding amount of individuals
16 ---------- 544 individuals
9 ------------X = 306 individuals tall stems and purple flowers T-P-
3-------------X = 102 individuals with tall stems and white flowers T-pp
3------------ X = 102 individuals with short stems and purple flowers ttP-
1 ------------ X = 34 individuals with short stems and white flowers, ttpp
a+b=13 c/b=10 a+b+c=33
Answer:
a = 11
b = 2
c = 20
Explanation:
hope it helps you ☺️
In the year 2374, humans finally developed the technology necessary for time travel. You are a scientist interested in the population genetics of extinct animals. After seeing Jurassic World, you decide to go back in time to study a population of velociraptors. The skin color of this dinosaur varies between tan (dominant) and brown (recessive). You observed 336 tan velociraptors and 64 brown velociraptors during your study. Assume the population is in Hardy-Weinberg equilibrium. a) What is the allelic frequency of the dominant (tan) allele in the population
Answer:
The allelic frequency of the dominant (tan) allele in the population equals 0.6
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Which two sentences identify the characteristics of a prokaryote?
Most prokaryotes lack well-defined organelles. They can move from one place to another using cilia. They use pseudopods to engulf food. The presence of peptidoglycan in their cell walls allows them to be visible on staining. All prokaryotes are heterotrophic in nature.
Answer: • Most prokaryotes lack well-defined organelles. They can move from one place to another using cilia.
• The presence of peptidoglycan in their cell walls allows them to be visible on staining.
Explanation:
A prokaryote lacks a nucleus that's enveloped enclosed. Also, most of them doesn't have well-defined organelles.
The presence of peptidoglycan in their cell walls allows them to be visible on staining and they can move by using cilia.
Drosophila geneticists have isolated many mutations that modify position-effect variegation. Dominant suppressors of variegation [Su(var)s] cause less fre- quent inactivation of genes brought near heterochro- matin by chromosome rearrangements, while dominant enhancers of variegation [E(var)s] cause more frequent inactivation of such genes.
A. What effects would each of these two kinds of mutations have on position-effect variegation of the white gene in Drosophila (that is, would the eyes be more red or more white)?
B. Assuming that these Su(var) and E(var) mutations are loss-of-function (null) alleles in the corresponding genes, what kinds of proteins do you think these genes encode?
Answer:
A. As it is given that Su(var) dominant suppressors of variegation mutant allele causes lesser white patches and more red patches in eyes as it is an inhibits or inactivates of PEV. If the Drosophila were heterozygous for the dominant enhancers of variegation E(var) mutation, there would be less red patches and more white patches.
b. Su(var) 1 gene encodes for the proteins that assist in the spreading of heterochromatin by inhibits the PEV which will be lost by null mutations while E(var)1 gene encodes for the proteins that restrict the spreading of heterochromatin by loss of function mutation
what is a polypeptide chain?
a. the beginning of a protein
b. the strand of mRNA
c. the strand of tRNA
Answer:
B
Explanation:
the polupeptide chain is from the strand mRNA which makes wate rmolecules digest into polypeptide
Select all of the ways that a fossil could get destroyed before being
discovered. (Again ALL the ways) *
eroded by wind and rain
subducted into the Earth's mantle and melted
uplifted into a mountain and eroded
This is a required question
Answer:
All of them
Explanation:
If a DNA codon changes from TTA to TTC, what amino acid would the matching mRNA sequence code for?
Answer:
TTC codon encodes for Phenylalanine (Phe)
Explanation:
A codon (also known as a nucleotide triplet) is a sequence of DNA or RNA composed of three consecutive nucleotides. During protein synthesis, each codon specifies a particular amino acid or stop signal (i.e., termination codons). There are 64 possible codons, 61 encode for amino acids, while three (3) codons represent stop signals (e.g., UAG, UAA, UGA). In this case, TTC (i.e., UUC codon in the mRNA) codon encodes the amino acid Phenylalanine, while TTA (i.e., UUA codon in the mRNA sequence) codon encodes the amino acid Leucine.
What are TWO advantages of seeds? Select TWO.
Select 2 correct answer(s)
Question 4 options:
comes with own food source
increased genetic diversity
can withstand stand extreme conditions
is made of asexual reproduction
Question 5 (1 point)
What are two advantages of spores?
Select 2 correct answer(s)
Question 5 options:
results in MORE genetic diversity
comes with own food source
can lie dormant and then "awaken"
can withstand extreme conditions
Answer: 4 own food source, increased genetic diversity.
5 dormancy, withstand extreme conditions
Explanation: usually have endosperm to provide food for germination. Can often withstand adverse conditions. Results of sexual reproduction, which gives genetic diversity.
Two types of spores. Bacterial spores lie dormant and can awaken. They can stand extreme conditions
Spores of non-seed plants are similar to seeds but have very limited food supplies.
The format of the question indicates that the answer relates to bacterial spores.
Cladograms represent hypotheses about evolutionary relationships, what are these relationships based on?
Answer:
A cladogram is an evolutionary tree that diagrams the ancestral relationships among organisms. In the past, cladograms were drawn based on similarities in phenotypes or physical traits among organisms. Today, similarities in DNA sequences among organisms can also be used to draw cladograms.
PLEASE HELP :(
How do icebergs contribute to rising sea levels?
○ They melt and increase the amount of water in the ocean.
○When they increase in size, they take
water out of the ocean.
○They break away from land, displacing significant amounts of water.
○The number of icebergs has been increasing, taking up more space in the ocean
In my knowledge
its option A
they melt and increase the amount of water in the ocean
Answer:
Its C -displacement
Explanation:
The other answer is wrong. It's just like when ice cubes melt in a cup the water level doesn't rise but instead, it increases the volume of the water in the cup by displacing it.
Earth science pleas help...............
I need help with anything on here mostly the explanation if anyone could possibly help it would be a lot. :)
Answer:
Hey !
I also need this answer
Explanation:
if you get it please let me know!
what happens to unusable energy in a food web?
that animals with start getting extinct
bacteria feeds on the unusable energy in a food web which creates a productive ecosystem
Explanation:
for example when a whale dies it falls to the ocean flour than other animals feed on it that when the bacteria feeds on the carces it resycles the unusable energy
Highly sensitive cells within the hypothalamus that react to changes in blood composition and cause the release of antidiuretic hormone (ADH) when appropriate are called.
Answer:
osmoreceptors
Explanation:
Osmoreceptors are nerve cells (neurons) capable of detecting changes in the extracellular fluid (ECF) osmolality, i.e., in the amount of solute in free water within the ECF. Osmoreceptors are known to contribute to osmoregulation by controlling body-fluid balance. These sensory receptors are mainly localized in the hypothalamus of homeothermic animals where they detect variations in the osmotic pressure and stimulate the release of antidiuretic hormone (ADH) in blood in response to the increase in plasma osmolality.
Toward an Artificial Cell Scientists have recently constructed an artificial ribosome in vitro from purified ribosomal proteins and rRNAs. (Some of the following questions may require sleuthing in earlier chapters to answer.) What types of intermolecular forces do you think are holding the individual proteins and rRNAs together in this macromolecular complex
Answer:
RNAs and proteins can bind via electrostatic interactions, hydrophobic interactions, Hydrogen bonding interactions and base stacking interactions
Explanation:
Proteins bind to nucleic acids (i.e., both DNA and RNA) through different types of interactions:
- electrostatic interactions, also known as van der Waals interactions, refer to attractive/repulsive interactions between molecules depending on their electric charges.
- hydrophobic interactions, i.e., interactions between nonpolar molecules and water molecules
- Hydrogen bonding interactions resulting from the interaction between a hydrogen (H) atom that bind to an electronegative atom (e.g., N, O, F, etc), and another electronegative atom.
- base stacking interactions that result from the arrangement of RNA nucleotides
In this case, it is also important to highlight that the interaction will depend on the specific tertiary structure of ribosomal proteins and ribosomal RNAs (rRNAs).
I need help, asap please
Answer:
Air, everywhere, salt, and in the cold
Explanation:
Select all that are true regarding ATP cycling
A. ATP is formed from ADP and phosphate
B. Energy for ATP synthesis comes from the oxidation of glucose and other fuel molecules
C. ATP hydrolysis is an endergonic reaction
D. Oxidation of ATP can be used for performing endergonic reactions in the cell
Answer:
A, B and D are correct
Explanation:
Adenosine diphosphate (ADP) can form a bond with a phosphate group to form Adenosine triphosphate (ATP), which is the most abundant energy carrier molecule in cells. An endergonic reaction is a chemical reaction where there is a net input of energy, while an exergonic reaction generates energy. ATP hydrolysis releases energy (conversely to ATP synthesis that requires an input of free energy), and therefore ATP hydrolysis is an exergonic reaction. ATP hydrolysis releases around 7.3 kilocalories per mole. In a coupled reaction, the energy released by ATP hydrolysis is used by the cell to carry out endergonic reactions in an exergonic manner (e.g., glucose phosphorylation, which is an energetically unfavorable reaction).
What molecule is the carbon input from carbon dioxide incorporated into during photosynthesis?
Water
Oxygen
hydrogen
Glucose
Answer:
Glucose
Explanation:
True or False: A hypothesis makes a prediction
Answer:
A hypothesis is a kind of guess or proposition regarding a situation. It can be called a kind of intelligent guess or prediction, and it needs to be proved using different methods. Formulating a hypothesis is an important step in experimental design, for it helps to predict things that might take place in the course of research. -or- What this statement means is that a hypothesis is a guess that a researcher in academia or other fields make and then follows an extensive research to either prove or disqualify the developed hypothesis as true or false. In contrary, a prediction is just but a guess that an individual makes without backing it with the necessary research in hope that it will happen.
Explanation:
Answer:
True
Explanation:
HELP :(
Where can magma be found on the surface of the earth?
○ In active volcanoes
○ Underneath lakes and rivers
○ In between all continental plates
○ In the aftermath of an earthquake
Hii!! The correct answer is A. In active volcanoes. (:
What is Earth's major source of air pollution?
What do you think a parrot can do?
Answer:
Fly
Explanation:
Answer:
Talk
Explanation:
..................
Select all that apply
Effectors include:
Multiple select question.
Nerves
Glands
Muscle
Sensors
Suppose the femur bone of an animal has 1,000 atoms of carbon-14 when the animal dies. How many atoms of carbon 14 will be present after 6,000 years? (1 point)
Answer:
After 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.
Explanation:
The half-life of a radioactive isotope of an element is the time taken for half the atoms present in a given amount of the element to undergo decay or disintegration. For example, the half-life of carbon-14 isotope is 5730 years. This means that, if there are 100 atoms of carbon-14 present in a given sample of a material, in the next 5730 years, approximately, 50 atoms of carbon-14 will be left in the material.
Since the half-life of radioactive isotopes are constant, these radioactive isotopes are used in the determining the ages of ancient life-forms as well as rocks.
In the given example, after 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.
Organisms that are most likely to use evaporative cooling would be ____________.
A. Small flying organisms living in a warm and wet climate.
B. Large terrestrial organisms living in a hot and dry climate.
C. Large terrestrial organisms living in a warm and wet climate.
D. Small flying organisms living in a hot and dry climate.
Answer:
Organisms That Are Most Likely To Use Evaporative Cooling Would Be Large Terrestrial Organisms Living In A Hot And Dry Climate Small Flying Organisms Living In A Hot And Dry Climate Large Terrestrial Organisms Living In A Warm And Wet Climate Small Flying Organisms Living In A Warm And Wet Climate.
Explanation:
why cats hate pickles hahahhahahah
Answer:
"Anything that looks like a snake should produce the instinctive fear response," Slobodchikoff said. “Cucumbers are shaped more like snakes, with their curving sides, than ears of corn or eggplants, so they produce a greater response."
But don't go trying to prank your cat with cucumber-shaped objects just yet. Scaring cats can have long-term effects on their mental health.
"Anytime you scare an animal, you risk inflicting psychological damage, so that the animal will be afraid not only of cucumbers,” Slobchikoff said, “but also the surroundings in which the cucumber was presented to the animal.”
Explanation:
https://twitter.com/i/status/679523580934275072 Poor cats TCT
Heeeeeeelp please
Answer and I will give you brainiliest