Answer:
... below
Explanation:
Brown eyes, for instance, are dominant over blue eyes. This is because a pigment called melanin produces the brown color, while having no pigment leads to blue eyes. Having just one allele for the dark pigment is enough to make your eyes brown.
Higher forms of life such as humans and other mammals generally reproduce-
A-by both sexual and asexual reproduction
B-only sexually
C-only asexually
Answer:
B- only sexually
Explanation:
Higher forms of life generally reproduce sexually in order to increase the amount of genetic variation within their population. I hope this helps!
Explain the relationship of making proteins to inheritance of traits
In cats, some are black, some are orange, and some are calico (fur that is both black and orange) All calico cats are always females. This trait represents two inheritance patterns. This two and explain how you know.
please help.
Calico cats are predominantly female because they’re colouring is related to the X chromosome.
Two X chromosomes are needed for a cat to have that distinctive tri-colour coat.If a cat has an XX pair, she will be female.Male cats have an XY chromosome pair, so they can’t be Calicos.Have a great day <3 (I love cats)
Answer: In cats, one of several genes controlling fur color is located on the X chromosome. The gene has two versions, or alleles. One form of the gene codes for orange fur (XB), and the other form codes for black fur (Xb). While it's difficult to say which allele is dominant and which is recessive, since only one is ever expressed (see below), let's say, for the sake of argument, that orange is dominant to black. Ordinarily, this would mean that an animal inheriting one copy of each gene (genotype XBXb) should have orange fur. Surprisingly, a female cat heterozygous at that locus (XBXb) will not be orange. Instead, her coat will be a patchwork of orange and black, a condition known as tortoiseshell. Male color expression is straightforward. Because only one allele exists for the gene in each cell, it will be expressed. And all males have only B or only b. There are no heterozygotes, because the Y does not carry the allele.
Explanation:
I got this from an article! I hope this helps.
Which molecule carries the protein code from the nucleus so translation can occur?
Answer:
messenger RNA
Explanation:
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm
Which of these events occurs first during the process of transcription?
A. RNA polymerase joins nucleotides into the RNA molecule.
B. RNA polymerase binds to the promoter.
C. Introns are removed from the RNA molecule.
D. Exons are removed from the RNA molecule.
Answer:
B. RNA polymerase binds to the promoter.
Complete the following statement from what you have learned about the motor unit. In some neurodegenerative diseases the lower motor neuron cell bodies die and the remaining lower motor neurons sprout processes that innervate the neuromuscular synapses vacated by the dead lower motor neurons. In these muscles, the size of the motor unit ____________ and the strength of the muscle contraction generated by individually activating each surviving motor neuron _________.
Answer:
The correct answer is - increase, increase.
Explanation:
In some neurodegenerative diseases, some lower motor neuron cells die and the remaining lower motor neurons continuing the process of the vacated dead motor neuron cells to innervate the neuron and muscle synapses.
The size of the motor unit increases and due to the innervations of the new axon
increases the strength of the muscle contraction occurred by individually activating each surviving motor neuron. Here multiple motor units will be controlled by a single neuron.
A mother transfers antibodies to her baby through breast milk. This is an example of
The earliest hominid fossil, “Lucy," is estimated to be 3.2 million years old. This early
human-like species shares an important characteristic with modern humans: bipedalism.
Which of the following would favor the selection of bipedal posture over walking on all
fours?
Bipedal posture allowed for greater mobility in the tree canopy.
ООО
Bipedal posture allowed arms to be free to develop and use tools.
Bipedal posture allowed for an increase in hominid brain and jaw size.
Bipedal posture allowed a greater number of offspring to be produced in
hominids.
Answer: Bipedal posture allowed arms to be free to develop and use tools.
Explanation:
Answer:
Bipedal posture allowed arms to be free to develop and use tools.
Explanation:
Bipedalism favors in the arms to be free
Hope this helps! :)
ESP: actuan las hormonas solo sobre celulas o pueden actuar sobre otras estructuras?
ENG: do hormones act only on cells or can they act on other structures?
Answer:
Hormones act only on cells not structures.
Explanation:
Hormones act only on cells and they do not act on other structures because there are specific cells have receptors for that particular hormone. Some hormones bind itself to the receptors on the surface of target cells whereas other hormones enter the cells and bind itself to the receptors present in the cytoplasm or nucleus of the cell.
What can you tell about bacteria that have been Gram stained?
A) Microscopic morphology
B) Macroscopic morphology
C) Gram reaction
D) A and C
Answer:
D) A and C
Explanation:
Gram staining is a laboratory technique used for bacterial species. It is used to differentiate between two groups of bacteria based on the components of their cell wall. Gram staining was developed by a scientist called Christian Gram in the year 1884. In the gram stain procedure, the following occurs:
- Due to the thick peptidoglycan component of their cell wall, GRAM POSITIVE bacteria retains the crystal violet due and stain VIOLET.
- On the contrary, due to the thin peptidoglycan component of their cell wall, GRAM NEGATIVE bacteria do not retain the crystal violet dye and hence stain, RED.
Based on this, a bacteria that has been gram stained has been tested for its GRAM REACTION and microscopic morphological characteristics, since it is a microbe.
Which one? I dont know please help me!!!
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
Explanation:
can someone pls help :)
Answer:
1 . A 3.B 2 .B . this is all I know but try the internet for more
Which evidence best supports the claim that mutations are a source of inheritable genetic variation?
(1 point)
Mutations are not inheritable from gametes because they are given from each parent.
Mutations affect the way DNA is created through transcription.
Mutations can only happen during meiosis because genes are inherited.
Mutations affect protein synthesis which impacts the way traits are expressed.
Answer:
Mutations affect protein synthesis which impacts the way traits are expressed
The rest of the answers are:
-substitution
-substitution
-The long-term radiation exposure damaged bonds in DNA causing mutations in her egg cells, and led to an inheritable genetic disorder.
-two nucleotides are deleted.
Explanation:
I just did the quick check and got 100% Have a good one!
The statement 'mutations affect protein synthesis which impacts the way traits are expressed' BEST supports the claim that mutations are a source of inheritable genetic variation.
Mutations are genetic alterations in the nucleotide (DNA) sequence of the genome of an organism.Non-silent mutations are those mutations that produce codons that encode different amino acids (i.e., non-synonym codons).Non-silent mutations have the potential to change the amino acid sequence of the resulting protein (synthesized from a given gene), thereby they impact how phenotypic traits are expressed.In conclusion, the statement 'mutations affect protein synthesis which impacts the way traits are expressed' BEST supports the claim that mutations are a source of inheritable genetic variation.
Learn more in:
https://brainly.com/question/10473763
Using the template, construct an appropriately labeled graph to represent the data in Table 1. Based on the data, determine the antimalarial drugs that are likely to be significantly less effective at treating disease caused by the ART-R strain than by the ART-S strain.
Answer:
Explanation:
The first one got messed up but its 130
helppppppppppp meeeeeeee
modern scientific explanations of evolution
a. have replaced darwin’s thinking
b. combine the principles of natural selection and genetic inheritance
c. rely on genetics instead of natural selection
d. fail to explain how traits are inherited
What are the Necessary conditions to form a natural lake
Answer:
What conditions are necessary for a natural lake? Lakes form in a variety of ways when a natural depresion fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.
Explanation:
Answer:
Lakes form in a variety of ways when a natural depression fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.
Arrange the terms in the correct order:
tissue, organism, organ, cell, system
Answer:
cell, tissue, organ, system, organism
Explanation:
Consider a plant with the following characteristics. Round leaves (R) are dominant to pointed leaves (r). White flowers (W) are dominant to pink flowers (w). Plants heterozygous for both traits are crossed. What is the probability of obtaining a plant with pointed leaves and pink flowers
Answer:
.0625 or 6.25%
Explanation:
Find the probability for the plant to have pointed leaves. If the two parent plants are heterzygous, then the likelihood the plant has a recessive characteristic is 25%, 1/4, or .25 for our calculations.Find the probability for the plant to be pink. If the two parent plants are heterzygous, the likelihood the plant has another recessive characterisitc is again 25%, 1/4, or .25 for our calculations.Multiply them together. (1/4)*(1/4)=(1/16) or .0625, or 6.25%Side-chain hydrogen bonding :__________
a) Side chains that can form hydrogen bonds are located on the outside of a protein, where they can stabilize tertiary structure by forming hydrogen bonds with water.
b) Two cysteine residues can form hydrogen bonds.
c) Side chains connect distant parts of a polypeptide chain and introduce loops into the chain.
d) Threonine and glutamine can form hydrogen bonds.
e) Hydrogen bonds stabilize quaternary protein structure by holding together several protein strands.
Answer:
a) Side chains that can form hydrogen bonds are located on the outside of a protein, where they can stabilize tertiary structure by forming hydrogen bonds with water.
Explanation:
A hydrogen bond occurs between a hydrogen atom and four other elements. The side chain hydrogen bonds are resulted from the tertiary arrangement of structural components of the proteins.
The side chain hydrogen bond are present at the outside of the protein at places where the water forming the hydrogen bond can stabilize the tertiary structure.
Pretty please help!!!
what would happen if scientific knowledge was not adaptable
there where no more correct solutions, they would be wrong, since the scientific method establishes relationships between facts, where it is a useful application for man.
what comes first mieosis or mitosis
Answer:
I'm not sure there's a first exactly, but if I had to guess I'd say mitosis.
Explanation:
Meiosis produces genetically identical cells, results in diploid cells and takes place throughout an organism's lifetime; involved in asexual reproduction. Meiosis produces genetically unique cells, results in haploid cells, only happens at curtain times in an organism's life cycle; involved in sexual reproduction.
How can studying the DNA of organisms and their specific genes provide evidence for how organisms change over ?
Answer:
As generations and generations go on there are mutations that cause one or many mistakes while replicating DNA. The genes are expressed and it can be postive (faster organism) or negative (weaker organism). Overtime the mutation can become a new trait and a new species is formed that is slightly differnt from other species. EX penguins species there are King penguin vs little penguin.
Explanation:
Which of the following flower structures protects the developing flower before the bud opens?
A. sepals
B. petals
C. ovary
D. stame
Answer:
A. sepals
Hope it helps
Please mark me as the brainliest
Thank you
Answer: A. Sepals: These are the small, leaf-like parts growing at the base of the petals. They form the outermost whorl of the flower. Collectively, sepals are known as the calyx. The main function of the calyx and its sepals is to protect the flower before it blossoms(in the bud stage).
Explanation: When a flower is a bud, it is surrounded by sepals, which in many cases are green, as in this example. They protect the flower bud and are behind/underneath the petals when the flower opens. Together, all of the sepals are called a calyx.
DNA is found in all living organisms true or false
Answer:
true
Explanation:
Something you might call someone who is small invertebrates animals
help l m a o ........
Answer:
D
Explanation:
LKM iF i AM CORRECT
If you throw a rock into the air, its instantaneous speed is probably highest
A) at the top of its flight
B) halfway to the top of its flight
C) when you throw it and right before it hits the ground
D) when you throw it
E) right before it hits the ground
Answer:
B halfway to the top of it's flight
If answered correctly you get brainliest.
Write two paragraphs (3-4 sentences per paragraph) in the space below describing how energy flows from a decomposer to a consumer and from a consumer to
decomposer.
Answer:
When a plant or animal dies, it leaves behind nutrients and energy in the organic material that comprised its body. Scavengers and detritivores can feed on the carcasses, but they will inevitably leave behind a considerable amount of unused energy and nutrients. Unused energy and nutrients will be present both in the unconsumed portions (bones, feathers or fur in the case of animals, wood and other indigestable litter in the case of plants) and in the feces of the scavengers and detritivores. Decomposers complete decomposition by breaking down this remaining organic matter. Decomposers eventually convert all organic matter into carbon dioxide (which they respire) and nutrients. This releases raw nutrients (such as nitrogen, phosphorus, and magnesium) in a a form usable to plants and algae, which incorporate the chemicals into their own cells. This process resupplies nutrients to the ecosystem, in turn allowing for greater primary production.
Although decomposers are generally located on the bottom of ecosystem diagrams such as food chains, food webs, and energy pyramids, decomposers in the biosphere are crucial to the environment. By breaking down dead material, they provide the nutrients that other organisms need to survive. As decomposers feed on dead organisms, they leave behind nutrients. These nutrients become part of the soil. Therefore, more plants can grow and thrive.
Bacteria are the primary decomposers of dead animals (carrion) and are the primary decomposers of dead plant matter (litter) in some ecosystems.
Explanation:
Consider a cross between a plant with two flower colors, yellow and red. Yellow (Y) exhibits complete dominance over red (y). It also has either single blossoms or double blossoms, single blossoms (S) exhibit complete dominance over double blossoms (s). A dihybrid yellow, single blossomed flower is crossed with a red flowered and double blossomed plant. You observe the following phenotype frequencies among the 1545 offspring plants:
500 yellow flowers and single blossom plants
515 red flowers and double blossom plants
260 yellow flowers and double blossom plants 270 red flower and single blossom plants.
What is the recombination frequency between these two genes?
a. (260+270) 1545
b. 270/1545
c. 1545/ (260+270)
d. 260/1545
e. (500+515)/1545
f. 1545/260
g. 1545/270
From these results one can conclude that:_______.
a. the two genes are linked
b. the two genes are not linked
c. if the genes are linked, they are separated far enough apart to appear to assort independently
Answer:
1) option a is correct. (260+270)/1545
(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )
2) From these results one can conclude that the two genes are linked (option a)
Explanation:
To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.
We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.
To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.
In the present example:
Parental) YySs x yyss
Gametes) YS parental type ys, ys, ys, ys
ys parental type
Ys recombinant type
yS recombinante type
The total number of individuals in the offspring: 1545
Phenotypic class Number of offspring
500 Y-S- (parental)515 yyss (parental)260 Y-ss (recombinant)270 yyS- (recombinant)According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.
The recombination frequency is:
P = Recombinant number / Total of individuals
P = 260 + 270 / 1545
P = 530/1545
P = 0.343
The genetic distance between genes is 0.343 x 100= 34.4 MU.