Which of the following is transported throughout the body by the circulatory system?
What kind of mutation would occur if a sequence of DNA is changed from ATCGGCTTAACG to ATCGGCTAAACG?
Answer:
Base substitution mutation
Explanation:
Mutation is the alteration or change that occurs to the sequence of a gene caused by a mutagen (chemicals) or spontaneously-induced. Depending on how the mutation occurs, it is of different types. The mutation shown in this question is as follows:
ATCGGCTTAACG to ATCGGCTAAACG
This type of mutation is called SUBSTITUTION MUTATION. Substitution mutation is a type of mutation that involves the replacement of one or more nucleotide base by another. In this original sequence; ATCGGCTTAACG, the eight base T was replaced by base A in the sequence, hence, it is a substitution mutation.
Which choice shows the correct order of the cell cycle?
A. Mitosis --> Cytokinesis --> Interphase
B. Mitosis --> Interphase --> DNA Replication
Answer:
correct order of the cell cycle? A
Which of the following is not a characteristic of a eukaryotic cell
Answer:
following means where man I can't understand sry for that
Do you think the human species is part of the Earth’s ecosystem?
Answer:
I think that humans would be part of the ecosystem because we produce carbon dioxide for plants, and without carbon dioxide, plants couldn't function. (This is just my opinion on the matter, but if this was a test question, I'd say yes.)
Explanation:
Answer:
Hmmm that's a tough question. In my opinion I believe that they are because they some of us choose to have a role in the ecosystem by helping the Earth become more "green". Maybe think about this, how did we end up here on Earth? (This might go against your science class but we ended up here because God created us all.) I don't know if this helped but I hope that it did. I apologize if it didn't.
Which sequence of events best describes the current theory of the origin of life on Earth?
Answer:
yes
Explanation:
The bananas eaten today are not the bananas that have always been eaten. In the early 1900's a different banana called the "Gros Michel" or "Big Mike' was the primary banana sported By 1950 a fungus had wiped outalmost all of the banana plantations that used the Big Mike and crops had to be changed. Bananas that are available throughout stores worldwide are all clones of the Cavendish banana Cloning is a process where the DNAfrom one organism is identically replicated and used to create a genetically identical organism Some plantations are starting to report a fungus impacting their Cavendish crops the same way the Big Mike crops wereImpacted. What is likely outcome for Cavendish bananas since most of the crops are clones?
Answer: d
Explanation:
will mark brainliest if correct
how are food webs and energy pyramids different
Answer:
energy pyramids shows importance
and webs show how everything is connected
Explanation:
What happens when a molten rock comes in contact with the ocean
Answer:
It freezes
Explanation:
I taken this test
14
Hemophilia is a recessive X-linked disorder. The term "carrier" can be used when explaining someone's genotype
for hemophilia. Which of the following is the correct term for carrier?
Answer:
petr moto seti pert hello met rein
Explanation:
perteyhsj
A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All the F1 had lacerated leaves. Two F1 plants were interbred to produce the F2. Of the F2, 249 had lacerated leaves and 16 had normal leaves. Give genotypes for all the plants in the F1, and F2 generations. Explain how lacerate leaves are determined in the opium poppy. (Section 5.2)
Answer:
The correct answer is-
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
2. Two genes, with a dominant allele at either or both loci.
Explanation:
The given information gives THE following data:
Dominant: Lancerate leaves - AABB
Recessive: normal leaves - aabb
F1 has - all Lacerated leaves - AaBb
F2 by selfing F1:
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94
And normal 1/16 = 0.062 is almost same as 16/265 = 0.060
Thus, the genotypes of -
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
Ducks are aquatic birds. Their feet are webbed and this trait makes them fast swimmers. Biologists believe that ducks evolved from land birds, which did not have webbed feet. How could this have happened
Answer:
Random chance mutations led to the webbed feet trait in ancestral land birds, conferring them an adaptive advantage. Birds that inherited the beneficial random mutations associated with the webbed feet trait had more chances to survive and reproduce, passing this trait to the next generations.
Explanation:
Mutations are ramdom changes in the nucleotide sequence of the genome of a particular organism. In general, mutations are deleterious, but mutations may occasionally be beneficial in certain environments. A beneficial mutation must be associated with one or more phenotypic traits capable of conferring an adaptive advantage in a certain environment, thereby the individuals carrying the mutation have more chances to reproduce and survive. In this case, one or more beneficial mutations associated with the webbed feet trait passed to the next generations, increasing their frequency in the population.
A congenital cataract is a clouding of the lens of the eye that is present from birth. The mode of
inheritance for one type of congenital cataract is from a dominant allele. Suppose a man is
heterozygous for this type of congenital cataract, and a woman does not have cataracts. If these two
individuals have a child, what is the probability that the child will have this type of congenital cataract?
a. 25%
b. 50%
c. 75%
d. 100%
Answer:
The mode of inheritance for one type of congenital cataract is autosomal dominant. If these two individuals have a child, what is the probability that the child will have A male with horns is mated with a heterozygous female without horns.
Which of the following is a characteristic of the plasma membrane? It is made up of one layer of phospholipids. It doesn't contain any molecules aside from phospholipids. The outward-facing phospholipid tails give it a rough quality. It allows some molecules to pass through but prevents others from doing so.
Answer:
It allows some molecules to pass through but prevents others from doing so.
Explanation:
compares and contrasts transformation, transduction, and conjugation
Answer:
In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
Explanation:
Inversion of DNA sequences within chromosomes is a common process in evolution. The following gene arrangements in a particular chromosome are found in four different species: First sequence: STUVWX Second sequence: UVXTSW Third sequence: UVWSTX Fourth sequence: SWVUTX Assuming that the arrangement in the first sequence is the ancestor/reference arrangement, in what evolutionary order did the four species arise, such that the fewest number of inversions occur between each species (place the first sequence as the earliest species in your ordering)2341
Answer:
The correct answer is - 1, 4, 3, 2.
Explanation:
It is given that the first sequence represents the earliest or ancestor species therefore, the first sequence would be - STUVWX
After the inversion, the highlighted sequence of the first sequence STUVWX gives rise to the second sequence as:
STUVWX
SWVUTX
Thus the second sequence after Ist inversion would be SWVUTX
2nd inversion, Third sequence:
SWVUTX
UVWSTX
Thus the third sequence after 2nd inversion is UVWSTX
3rd inversion, fourth sequence:
UVWSTX
UVXTSW
Thus, the fourth sequence after 3rd inversion is UVXTSW
es verdadero o falso
para que un organismo pluricelulares se reproduzca asexualmente sus celulas deben estar diferencicidas
Answer:
FALSO O VERDADERO QUIEN SABE XD AJAJAJAJAJAAJAJAJAJSJDJDJSJAAJAJSJS
The gecko is a reptile that has the amazing ability to climb smooth surfaces - even glass. Recent discoveries indicate that geckos stick to smooth surfaces via van der Waals interactions between septae on their feet and the smooth surface. When not selling car insurance, geckos climb smooth surfaces.
a. How is this method of stickiness advantageous to the gecko over covalent interactions?
b. Given that van der Waals forces are among the weakest molecular interactions, how can the gecko's feet stick so effectively?
Answer:
a) This method of stickiness is advantageous over covalent interactions because it is weak and easily reversible.
b) The feet are equipped with millions of septae which collectively produce a synergistic effect that produces a powerful adhesive effect.
Explanation:
Geckos have their feet studded with tiny hair-like substances called septae, and these substances interact with the surfaces on which the Gecko climbs using weak van der Waals forces to produce stickiness.
a) The van der Waals interactions for the purpose of climbing is of more advantage over the covalent method of interaction because climbing involves a repetitive action of adhesion to the surface and destruction of such adhesion, and this involves the creation and the breaking of the bonds between the two surfaces easily. van der Waals forces being easily broken helps to achieve effective climbing. If the method of interaction is with a comparatively strong bond, the speed of creation and destruction of such bond is reduced, and the effectiveness of climbing is reduced.
b) Although van der Waals forces are weak forces, each foot of the wall Gecko has millions of septae that each create a van der Waals interaction, and the collective interactions produce a powerful adhesion causing the feet to stick effectively.
In the first step of pollination, _____ from the male anther is transferred to the female _____. The pollen grain is then carried down the _____ to the ovary. Inside it meets with an ______. This is the process of fertilization.
WILL GIVE BRAINLIEST IF YOU HELP, IT'S DUE TMRWWW
Answer:
1. pollen grains
2. stigma
3. style
4. egg cell of an ovule
An osteocyte is a main cell type in which tissue ?
1) adipose
2) cartilage
3) loose connective tissue
4) bone
5) blood
Answer:
Bone-
Explanation:
77 POINTS, PLEASE HELP ASAP
1): Lily is dressing up as a chicken for Halloween this year and is flapping her arms like a bird as she walks from house to house. As Lily flaps her arms down to her sides, what type of movement is occurring?
2): Katie loves pretending that she’s a human cannonball. As she jumps off the diving board, she assumes the proper position before she pounds into the water: head and thighs tucked against her chest; back rounded; arms pressed against her sides while her forearms, crossed in front of her shins, hold her legs tightly folded against her chest. What movement term would best describe the positioning of Katie’s vertebral column, head, thighs, lower legs and lower arms? HINT: She is about as far from the anatomical position as she can get.
Answer:
1. abduction & abduction
2. flexed
What is the identity of the planets?
A:
B:
C:
D:
Answer:
Explanation:
Distance from Sun (km)
778,600,000
4,495,100,000
1,433,500,000
2,872,500,000
Answer:
A: Jupiter
B: Neptune
C: Saturn
D: Uranus
Explanation:
Hope this helps! Have a great day!! ❤
how is the law of mendelian inheritance violated in down's syndrome
Answer:
According to the Law of segregation presented by Mendel, each gamete receives just one copy of every allele randomly. Normally all the cells follow the Mendelian inheritance.
In Down's syndrome, an individual gets 3 copies of a chromosome instead of the normal chromosome pair. This is also known as trisomy 21. It does not follow the law of segregation of Mendelian inheritance as it gets three instead of two.
Which of the following distinguishes how auxins affect plant stems?
Auxins enable plant stems to search for water.
Auxins give plant stems their strength and rigidity.
Auxins enable plant stems to reach for sunlight.
Auxins give plant stems their green pigmentation.
Answer:
D.
Explanation:
Answer:
b
Explanation:
Auxins promote stem elongation, inhibit growth of lateral buds (maintains apical dominance). They are produced in the stem, buds, and root tips. ... This produces a curving of the plant stem tip toward the light, a plant movement known as phototropism. Auxin also plays a role in maintaining apical dominance.
What is a limiting factor of a desert frog that requires rocks for shelter & insects for food?
a. drought
b. scarcity of rocks
c. abundance of insects
d. shelter
e. rain
Answer:
D and E
Explanation:
they both sound right
Which evidence is provided by fossil record
The fossil record
This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.
WILL MARK BRAINLIEST!
Answer:
Recessive
Explanation:
When there is a skipped generation, the trait must be RECESSIVE. For dominant trait, having 1 dominant allele will give you affected phenotype. It can never give a skipped generation.
In Guinea pigs, black hair (B) is dominant over white (b), rough coat texture (R) is dominant over smooth (r), and short hair (S) is dominant over long hair (s). Assuming these genes are on separate chromosomes, draw the Punnett square for a cross between a heterozygous BLACK, ROUGH, SHORT haired with another heterozygous BLACK, ROUGH, SHORT haired guinea pig. What is the PHENOTYPIC RATIO of the offspring
Answer:
Phenotypic ratio: 27:9:9:9:3:3:3:1
Explanation:
Available data:
black hair (B) is dominant over white (b)rough coat texture (R) is dominant over smooth (r)short hair (S) is dominant over long hair (s)genes are on separate chromosomesCross: heterozygous BLACK, ROUGH, SHORT haired with another heterozygous BLACK, ROUGH, SHORT haired guinea pigParentals) BbRrSs x BbRrSs
Gametes) BRS, BRs, BrS, Brs, bRS, bRs, brS, brs
BRS, BRs, BrS, Brs, bRS, bRs, brS, brs
Punnett square)
BRS BRs BrS Brs bRS bRs brS brs
BRS BBRRSS BBRRSs BBRrSS BBRrSs BbRRSS BbRRSs BbRrSS BbRrSs
BRs BBRRSs BBRRss BBRrSs BBRrss BbRRSs BbRRss BbRrSs BbRrss
BrS BBRrSS BBRrSs BBrrSS BBrrSs BbRrSS BbRrSs BbrrSS BbrrSs
Brs BBRrSs BBRrss BBrrSs BBrrss BbRrSs BbRrss BbrrSs Bbrrss
bRS BbRRSS BbRRSs BbRrSS BbRrSs bbRRSS bbRRSs bbRrSS bbRrSs
bRs BbRRSs BbRRss BbRrSs BbRrss bbRRSs bbRRss bbRrSs bbRrss
brS BbRrSS BbRrSs BbrrSS BbrrSs bbRrSS bbRrSs bbrrSS bbrrSs
brs BbRrSs BbRrss BbrrSs Bbrrss bbRrSs bbRrss bbrrSs bbrrss
F1) Phenotype
27/64 B-R-S-
9/64 B-rrS-
9/64 B-R-ss
9/64 bbR-S-
3/64 B-rrss
3/64 bbrrS-
3/64 bbR-ss
1/64 bbrrss
Note: The symbol "-" represents either dominant or recessive alleles.
Phenotypic ratio: 27:9:9:9:3:3:3:1
The energy of an object due to its temperature is called
a. Temperature Energy
b. Thermometer
c. Thermal Energy
d. Chemical Energy
Answer:
C. Thermal energy.
The energy of an object due to its temperature is called Thermal energy.
This region is known for hot and dry summers and long, cold winters.
Answer:
Desert?
Explanation:
Answer:
what is the question? there is none
Explanation: