The complete question is as follows:
Hypothesis Cas More Information: Here is a summary of the data, Mass of DNA Cat Res per Coll Mother Father Calix 1520 fg 1495 fg 1535 fg . The mass of an X chromosome is 40 fg. • Point mutations do not change the mass of DNA. • In chromosomal rearrangement, some daughter cells gain parts of chromosomes and some lose parts of chromosomes. • In nondisjunction, daughter cells gain a whole entire chromosome. Obe Exp Нур 는 Exp Point Mutation in Melosis Chromosomal Rearrangement Nondisjunction Choose the mutation that you think has caused Calix's calico fur coloring. Form a hypothesis to explain your reasoning. You will be able to revise your hypothesis as you collect more data.
Answer:
The correct answer is - non-disjunction.
Explanation:
Calix's calico has an X chromosome gene that determines the color of fur. One allele forms orange fur and the other give rise to black. In heterozygous give rise to orange patches on black.
Mother has autosome and 2-X chromosomes.
Mass of 2 X chromosomes will be
= 40*2
= 80fg
So mass of autosomes = 1520-80
= 1440fg
Mass of sex chromosomes in father is = 1495-1440
= 55fg
So the mass of Y=55-40
= 15fg
It is clear that the mass of DNA of Calix is exactly 15 more than DNA of the mother. So we can say that Calix has an entire Y chromosome in extra.
So the answer is non-disjunction.
The right option is - non-disjunction.
Information regarding Calix’s calico:It comprises of X chromosome gene that measured the fur color. In the case of heterozygous, it provides the increment with respect to orange that patches on black.
Since Mother has autosome and 2-X chromosomes.
So,
Mass of 2 X chromosomes should be
= 40*2
= 80fg
Now
The mass of autosomes should be
= 1520 - 80
= 1440fg
Now
Mass of s-ex chromosomes in father should be
= 1495-1440
= 55fg
Now finally the mass of Y is
= 55 - 40
= 15fg
Based on the above calculation, the mass of DNA of Calix should be 15 i.e. more than the DNA of the mother.
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The early ancestors of horses showed the presence of digits on their limbs, while modern horses have hooves. What are likely possible reasons for this change?
Answer:
Natural Selection & Fitness
Explanation:
Horses have evolved to run as fast as possible because they are prey animals.
The hooves give advantages to the predecessors to the modern horse rather than the foot-bearing horses.
Thus when somebody inevitably becomes a snack, the hoof bearing horses lived longer. (Natural selection)
Because they've lived longer, they've had more babies. (Fitness)
Their babies are more likely to pass on the genes they've inherited from their successful parents, and the population of hooved-horses begins to exceed the population of footed-horses.
In this circumstance, all the footed-horses are gone. The population has evolved.
Hope this helps <3
PS: here's a source! https://www.amnh.org/exhibitions/horse/the-evolution-of-horses/on-your-toes#:~:text=Hooves%20and%20long%20legs%20help,many%20horses%20retained%20three%20toes.
You go on an expedition into the Amazon Rainforest to look for new species before they are destroyed by logging. You find one organism you have never seen before. You run a few tests to determine what kind of organism it is. You determine that it is multicellular and that it first digests, then absorbs nutrients from the environment around it. What classification fits it best?
A. Plantae
B. Animalia
C. Fungi
D. Protista
Multicellular is a cellular classification where the organism is made of more than one cell. The multicellular organism that absorbs nutrients best fits in the kingdom of Fungi. Thus, option C is correct.
What is Kingdom Fungi?
Fungi is one of the five kingdoms that are characterized by eukaryotic organisms with multicellular structures. They contain microorganisms that are heterotrophs and cannot make their own food. They absorb the nutrients from decaying organic materials.
The fungal mycelia and filaments called hyphae allow fungi like mushrooms and molds to absorb nutrients and minerals from the surrounding. They digest the nutrients with the help of enzymes.
Therefore, option C. the Fungi first digest then absorb nutrients from the environment.
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Choose ALL options that refer to the proteins that work together to make a muscle contract. A) fascicle B)actin C)mysoin D)fiber
brainlest and 100 points
Answer:
The troponins involved in muscular contraction are actually a complex of three proteins known as troponin I, troponin C, and troponin T (Figure 2.125). They associate with each other and with tropomyosin on actin filaments to help regulate the process of muscular contraction.MExplanation:
Answer:
mysoin and actin
Explanation:
muscle contractions results from the reaction of myotin and acting.
please help me
An ecosystem that develops from barren rock is known as?
The rebuilding of an ecosystem after a natural disaster
is known as?
Explain why secondary succession is a faster process than primary succession.
Answer:
Ecological succession happens when new life takes over an environment. ... Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment
Ecological restoration aims to recreate, initiate, or accelerate the recovery of an ecosystem that has been disturbed. Disturbances are environmental changes that alter ecosystem structure and function. Common disturbances include logging, damming rivers, intense grazing, hurricanes, floods, and fire
Secondary succession is usually faster than primary succession because soil and nutrients are already present due to 'normalization' by previous pioneer species, and because roots, seeds and other biotic organisms may still be present within the substrate
Someone please help!! WIll give Brainliest!!! 30 points!!!
List the order of vessels the blood travels after it leaves the heart to the point that it is returning to the heart.
Answer:
Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body. This pattern is repeated, causing blood to flow continuously to the heart, lungs and body.
Explanation:
*PLEASE HELP*
Which of the following best describes the role of the nervous system?
A. responds to all internal and external stimuli
B. detects only stimuli from outside an organism
C. responds only to stimuli occurring inside an organism
D. detects internal and external stimuli at the cellular level
I think it is A! The nervous system reacts to all internal/external, such as hormones, touch, sound, disease, etc
Bacteria convert the nitrogen in the atmosphere into
a.Usable nitrogen
b.Non-usable nitrogen
Answer:
b. Usable nitrogen
Explanation:
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants. Recently fixed ammonia is then converted to biologically useful forms by specialized bacteria.
Which animals typically have a reproductive group and a nonreproductive group within their social structure?
bees
lions
moose
zebras
Answer:
Bees
Explanation:
In the beehive there are bees like worker and drone bees that do not reproduce. Their job is to make honey and repair the hive.
Answer:
it's A
Explanation:
Stem cells that are found in the developing fertilized egg after it has formed a blastocyst.
a.) adult stem cells
b.) embryonic stem cells
c.) white blood cells
d.) bone marrow cells
No Links!
what is the ozone layer
The layer of the Earth below the crust
The layer of the atmosphere that we breathe
A portion of the Earth's atmosphere that protects the Earth from radiation
All of the above
ILL GIVE BRAINLIEST
Answer:
A portion of the Earth's atmosphere that protects the Earth from radiation
How are ores used to make materials used in our everyday lives?
Explanation:
The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses. Copper, an excellent conductor of electricity, is used as electrical wire. Copper is also used in construction.
help I do not understand :/
Questions
1 the blank is all of the living organism for earth and places they live
Answer:
The biosphere is all of the living organisms on Earth and the places they live.Explanation:
culture of honey bees is called ……………….
a)pisciculture b)apiculture c)sericulture d)none
B. Apiculture
Explanation:
I know this because I learned it in class before
Which of the following is not a benefit of genetic engineering?
A: Creation of harmful mutations and variations
B: Diagnosis of genetic diseases
C: Production of plants and crops that are resistant to disease
D: Replacement of non-functioning genes
Answer:
The answer is C.Production of plants and crops that are resistant of diseases.
The benefit of genetic engineering will not be in "Production of plants and crops that are resistant to disease".
What is genetic engineering?Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in laboratories.
What is plants?A plant would be a living entity with a stem, leaves, as well as roots that develop in the soil.
There are some example of genetic engineering and they are:
Rapeseed Plants Resistant to PesticidesProtection against Pollution PlantsCry-Free OnionsTherefore, the benefit of genetic engineering will not be in "Production of plants and crops that are resistant to disease".
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If a cow only had the dominant phenotypes what traits would be shown
Answer- Some examples of traits that are simply inherited with complete dominance are red/black coat color, horned/polled and lethal defects.
Explanation:
Question 2
Which of the following terms best describes the idea of managing and carefully using Earth's resources?
A
recycling
B
reducing
С
conservation
D
conclusion
Please help ;(
question and answer options in photo
zoom in if needed
Thank You :D
Answer:
B Decomposers
Explanation:
There is nothing to eat the dead animals/ leaves for when they die
Answer:
I believe the answer is, B
Clouds form when water vapor _________.
A. evaporates
B. condenses
Answer:
B. condenses
Explanation:
Clouds form when water vapor condenses.
¿Los huesos podrían estar hechos de otro material?
(Por favor una respuesta bien explicada)
Answer:
me imagino que no porque nuestos guesos son duros si tomamo calcio o cosas sanas. por ejemplo si nuestros guesos fueran de hierro y les pondriamo calcio o medicinas sanas, no pasaria nada
Answer:
por ejemplo si nuestros guesos fueran de hierro y les pondriamo calcio o medicinas sanas, no pasaria nada
Main features of Solar System, Main facts of solar system
Answer:
The main features of the solar system:
The Sun is our nearest star.
The planets orbit the Sun.
The time taken to orbit the Sun increases with distance from the Sun.
Gravity keeps the planets in orbit around the Sun and the moons in orbit around their planets.
From the Sun, the order of the planets is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. You might need to be able to recall this in the exam.
The planets go around the Sun in slightly squashed circular elliptical orbits.
Pluto is classified as a dwarf planet or planetoid. It has a highly elliptical or eccentric orbit.
Main facts
The definition of a planet and a moon is fuzzy. ...
Comets and asteroids are leftovers. ...
The planets are all on the same “plane” and orbit in the same direction. ...
We're nowhere near the center of the galaxy. ...
But the Solar System is bigger than you think. ...
The Sun is hugely massive. ...
Explanation: (:
^ the question is in the picture above
2 characteristics of earth's crust??
Answer:
The earths crust is composed by a variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The crust occupies less than 1 percent of the earths volume.
Where does the process of replication occur?
A) ribosome
B) cytoplasm
C) nucleus
D) golgi apparatus
Answer:
nucleus
Explanation:
DNA is replicated in the nucleus...so yeah
Answer:
In eukaryotic cells, such as animal cells and plant cells, DNA replication occurs in the S phase of interphase during the cell cycle. The process of DNA replication is vital for cell growth, repair, and reproduction in organisms.
plants that posses plant organs are called?
According to Newton's Second Law of Motion, a bigger axe would have _______ force than a smaller axe if they were going the same rate.
1. more
2. less
Answer:
1. more force than a smaller
If brown hair is represented by the allele "B" and blond hair is represented by the allele "b" then what must the genotype(s) be of someone who has brown hair?
Answer:
Bb or BB
Explanation:
since brown hair was the dominant allele it only has to have one big B to serve as a heterozygous dominant trait. Therefore, the person has brown hair. If you were looking for blond hair it would have to be bb because it is a recessive trait and you need two recessive traits to make up a certain genetic trait.
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Give the scientific term for each of the following descriptions.
2.1 The phase in which chromatids are separated
2.2 The phase where chromatids are formed
2.3 Plant tissue responsible for mitosis
2.4 The stage of cell division in which the DNA is copied
2.5 The cellulose structure that divides a plant cell into two during telophase
2.6 The two structures that make up a centrosome
Answer:
2.1: Anaphase
2.2: synthesis phase
2.3: Meristematic tissue
2.4: Interphase
2.5: cleavage furrow
2.6: pericentriolar material
Explanation:
An axon releases dipamine outside of the cell by
Answer:
Having elecrical impulses travel down the axon to the terminal.
Explanation:
We have concluded that the spiders have different traits for silk flexibility because the offspring inherited different combinations of gene versions from their parents.
The evidence supports this claim because . . .
The is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
What is the significance of the spider's silk?The quality of the spider silk is genetic, and due to this, some of the spiders do produce high-quality silk while others produce average or poor-quality silk, but the silk has many applications in various fields, such as biomedical fields such as in tissue engineering, drug delivery, and wound healing, due to its biocompatible, non-toxic properties.
Hence, it is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
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