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.
The two genes f and g, code for body size and aggressiveness, respectively. The F allele is dominant over f, and codes for a larger body size. The G allele is dominant over g, and codes for more aggressive ants. You perform a Mendelian dihybrid cross (NOT a test cross) on these traits. If there is no recombination between these genes (recombination frequency = 0.00), what ratio should you see phenotypes in in the offspring? (note that the parent generation was made up of large aggressive ants and small docile ants.)
A. 9 large aggressive:3 large docile:3 small aggressive: 1 small docile
B. 1 large aggressive:1large docile:1small aggressive:1small docile
C. 12 large aggressive:4 small docile (i.e. 3 large aggressive:1small docile)
D. None of the above
Answer:
The correct answer is option C.
Explanation:
As it is given that, a Mendelian cross is performed between two parents resulted by cross the parents. This suggests that the parents or P generation has zero recombination hence the genotype of Parents would be AA and aa in nature. Therefore, all the F1 generation offspring were Aa in nature. The selfing of the F1 offspring will be:
A a
A AA Aa
a Aa aa
Genotype: AA: Aa: aa :: 1:2:1
Phenotype: Dominant: recessive :: 3:1
Why are phospholipids of the plasma membrane oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane?
Answer:
The plasma membrane is semi-permeable. The reason for this is because of the orientation of the phospholipids. The heads at the surface are hydrophilic so they face the water. The tails are hydrophobic so they face away from the water.
Explanation:
The phospholipids of the plasma membrane are oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane - due to the fact that phospholipids have hydrophobic tails and hydrophilic heads.
Phospholipids consist of fatty acids and alcohol in the plasma membrane are arranged in two layers, known as the phospholipid bilayer. It has a hydrophobic or water-hating tail and a hydrophilic or water-loving head.
it has a head and two tails.As the tails are hydrophobic so, face the inside, away from the water.As the heads are hydrophilic so face outwardHeads are towards intracellular and extracellular fluid.Tails are meet the inner layerThus, the correct answer is - due to two layers of hydrophobic tails and hydrophilic heads.
Learn more about phospholipids:
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If we have a DNA gene that reads: TACGCGTCAGGCCAA
The Transcribed mRNA would read?
Answer:
AUGCGCAGUCCGGUU
Explanation:
A - U
T - A
G - C
C - G
Animals that live and feed inside the bodies of other organisms. (A P R A T I S E S)
Answer:
parasites
Explanation:
live and feed inside other organisms
Shelly and Jason are siblings, but Shelley looks like their father while Jason looks like their mother. Which of the following statements best explains the difference in Shelly’s and Jason’s features?
A. Shelly and Jason inherited different combinations of 23 chromosomes from their mother and 23 chromosomes from their father.
B. Shelly inherited a greater number of chromosomes from their father than Jason did.
C. Shelly inherited a smaller number of X chromosomes from their mother than Jason did.
D. Shelly and Jason had different mutations occur in the 46 chromosomes their inherited from their mother and father.
Answer: The answer is D.
In a population of 239 pea plants in equilibrium, 47 individuals have white petals, while the rest have purple petals. Color is controlled by a single gene with two alleles. Purple is dominant to white. How many individuals in the population should be heterozygotes if the population is in Hardy-Weinberg equilibrium
Answer:
The number of heterozygous individuals in this population is 120.
Note: All the results are rounded up. Because of this, you might get a similar value in your results but not exactly the same. That is ok, just follow the steps.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
The graphic shows the largest fresh and salt water sources on Earth. Which of these sources BEST completes the graphic? A. Snow B. Clouds C. groundwater D. Swimming
Answer:
Explanation:
C
which of these is an adaptation that helps fish survive in the bathyal and abyssal zones?
A dark-colored body
B
A yellow or orange body
с
Reduced sense of smell
A. Dark-colored body
In the abyssal and bathyal zones, it is so deep that light does not penetrate the water, so it is completely dark. A dark-colored body helps fish survive as it camouflages them.
I would appreciate brainliest, if not that's ok!
Dark adaptation ________. Dark adaptation ________. primarily involves improvement of acuity and color vision involves accumulation of rhodopsin results in inhibition of rod function is much faster than light adaptation
Answer:
involves accumulation of rhodopsin
Explanation:
This is because dark adaptation is the ability of the eye to react to low light sensitivity and all the rod pigments of the eye bleached out which is as a result to the bright light and this make the rods nonfunctional in the initial state . Once you are in the dark, rhodopsin regenerates and tthis lead to increase in retina sensitive continuously.
In some cases, a trait is determined by multiple alleles interacting. in rabbits, coat color is one of those traits. Therefore alleles for color color each of which causes a different phenotype. Exam in the table below and answer the question. A Himalayan and a chinchilla mate, and some of the resulting offspring are white. What
must the genotypes of the parents be?
Explanation:
option C is the correct answer of this question .
according to my calculations .
and I am 99.9% sure it is the correct answer .
hope this will be helpful to you.
Why are fossils not found in igneous rocks?
Igneous rocks are too dark in color to contain fossils.
Igneous rocks are found too deep underground.
Igneous rocks are made from cooling of lava or magma.
Igneous rocks are too dense to contain fossils.
Answer:Igneous rocks are made from cooling of lava or magma.
Which life function (that's something living things do) would be similar to
hydrolysis?
digestion
excretion
reproduction
Growth
Which of the following BEST describes the recommended simple sugar intake for athletes?
A.Most athletes should eliminate all sugar from the diet.
B.Most athletes should keep sugar intake to less than 5% of total daily energy intake.
C.Most athletes should keep sugar intake to less than 10% of total daily energy intake.
D. Sugar should not be restricted in the athlete's diet because it provides a good source of carbohydrate for the working muscle.
.
Answer:
B
Explanation:
because sugar is common in food but he needs to limit it
The user needs to drag the slider bar in an upwards direction in order to completely melt away a body layer when in the dissection study area.
True or False
Answer:
False
Explanation:
During the dissection study the body is kept in laying position so that the scientist can easily perform experiments. The body is kept in laying position not in upward position. The body in upward position will have gravitational effect on the fluids and the body layer will not melt.
What are the major types of nutrients you can get from food?
Answer:
Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.
Explanation:
A scientist is researching two different traits in an insect: body texture and color. Smooth body (B) is dominant to bumpy body (b), and gray (G) is dominant to white (g). A BbGg and a bbgg insect mate and produce the following 480 offspring: Phenotype Number of Offspring Smooth, gray 119 Bumpy, white 117 Smooth, white 123 Bumpy, gray 121 What type of inheritance is displayed from these offspring
Answer:
Independent assortment
Explanation:
The type of inheritance displayed by the offspring is a simple independent assortment inheritance according to Mendelian law.
The result of crossing BbGg and bbgg is as follows (see the attached image)
4 BbGg smooth and gray
4 Bbgg smooth and white
4 bbGg bumpy and gray
4 bbgg bumpy and white
The phenotype ratio from the cross is 1:1:1:1 as far as the independent assortment is concerned.
Now, looking at the population of each phenotype from the cross
Smooth, gray 119
Smooth, white 123
Bumpy, gray 121
Bumpy, white 117
119:123:121:117 is approximately equal to 1:1:1:1.
Hence, the cross agrees with Mendel's law of independent assortment of genes.
How do exogrya and pycnodonte differ from modern day oysters?
Answer:
This oyster occurs very commonly in the oyster beds of the Navesink formation at Big Brook. from Exogyra by its non-spiral nature and lack of ornamentation. Size: Pycnodonte can be between 2 to 10 cm (about . ... Some older sources label the genera of this oyster as Gryphaea.
#carryONlearningWhat term means "to come after"?
Answer:
"pursue or hunt down someone."
Explanation:
Hope this helps. ^_^
Consider that people with blues eyes must have two alleles for blue eyes since blue eye color is a recessive trait. A blue-eyed person and a brown-eyed person have an offspring with blue eyes. What must be true about the brown-eyed person?
a. they must have two alleles for blue eyes
b. they must have one alleles for blue eyes and one allele for brown eyes
c. they must not have the dominant brown eye allele
d. they must have two alleles for brown eyes
Answer:
Full Connections Academy Quick Check
1. A version of a gene is called
allele
2. The trait for blue eyes in humans is caused by a recessive allele. If this gene is named capital e, what is the genotype of a blue-eyed person?
ee
3. Describe the relationships among genes, dna, and traits.
Traits are determined by genes, which are composed of dna.
4. In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails?
50%
5. What is meant by a phenotype ratio in a Punnett square?
The fraction of possible offspring that can be observed to have a trait
Explanation:
every cell in an organism has the same number of chromosomes except
Answer:
Neurons
Explanation:
1
Matter can alter its form through a chemical change or through a physical
change. No matter what the type of change is, every time matter alters its
form-
А
the matter releases heat energy.
B
some of the matter is destroyed.
I
с
new matter will be created.
D
the amount of matter is the same.
Answer:
D the amount of matter is the same
HELP ASAP
What factor would not affect the island lizard gene pool once they reached the mainland?
O New and diverse ecosystems
Major island storms
New populations of lizards to breed with
Separation from the island lizard population
Answer:
c new populations !
Explanation:
easy
Answer:
Major island storms
Explanation:
Why do viruses not fit easily into the broadest taxonomic category, life? (Choose all that apply)
1. They are not made of cells.
2. They have a capsid.
3. They do not reproduce on their own.
4. They do not respond to stimuli.
Answer:
viruses are not fit into broadest taxanomic system because:
they are not cells
they do not reproduce their own
they do not respond to stimuli.
Explanation:
viruses have capsid and are not cells. to be a cell they must have a cell membrane while viruses lack cell wall. they replicate by using the host machinary in which they are causing infection. they are acellular and obligate intracellular parasites of anials plants fungi and bacteria.
Answer:
they are not cells
they do not reproduce their own
they do not respond to stimuli
Explanation:
and i just took a test about this
PLEASE HELP ME WITH THIs
One way to get consistent, valid data is to
A. be sure that instruments are calibrated properly.
B. use simple instruments to make measurements.
C. select the best data to place into data tables.
D. make the measurements as quickly as possible.
Myoglobin transfers oxygen obtained from hemoglobin to mitochondrial proteins involved in the catabolism of metabolic fuels to produce energy for the muscle cell. What can you conclude about the structures of these mitochondrial proteins?
Answer:
Explanation:
Mitochondria is a double membrane bound organelle that is located in most eukaryotic organisms and it has a number of different shapes.
A mitochondrion has a outer and inner membranes made up of phospholipid bilayers and proteins which have different properties. Because of the double membraned organization, mitochondria have five distinct parts:
Outer mitochondrial membrane
Intermembrane space which is the space between the outer and inner membranes
Inner mitochondrial membrane,
the cristae space which is formed by the folding in of the inner membrane and
matrix which is the space within the inner membrane.
Mitochondria has a complex structure that allows for all the activities carried out by it this includes,Energy conversion, Pyruvate and the citric acid cycle, NADH and FADH2 which are the electron transport chain, Heat production and Storage of calcium.
The results of gel electrophoresis are shown below, with four different strands of DNA
labeled
electrode
=
| | ||
T
Which strand of DNA is the shortest?
O A 3
Х
B. 1
O C. 4
OD. 2
Not B
Answer:
DNA with the shortest strand will travel longer than DNA with the longer strand. In electrophoresis, the electricity will cause the DNA to move from one side of the gel to the other side. Shorter DNA strand will have a lower resistance to move in that gel so it can move further.
Explanation:
DNA with the shortest strand will travel longer than DNA with the longer strand. In electrophoresis, the electricity will cause the DNA to move from one side of the gel to the other side. Shorter DNA strand will have a lower resistance to move in that gel so it can move further.
The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.
What is DNA?A shorter DNA strand will pass through the gel with less resistance, allowing it to move farther.
The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.
A shorter DNA strand will pass through the gel with less resistance, allowing it to move farther. The publication of On the Origin of Species in 1859, Darwin has typically eclipsed Wallace.
Therefore, The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.
To learn more about DNA, refer to the link:
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Why do you think fish would have more phosphorus than cows?
Answer:
Because of their food.
Explanation:
Phosphorus can be found in foods (organic phosphorus) and is naturally found in protein-rich foods such as meats, poultry, fish, nuts, beans and dairy products.
Why did you not see any chloroplasts in the onion epidermal cells, unlike in the Elodea (Anacharis) cells?
-Chloroplasts in onion cells are hidden by the large central vacuole.
-The part of the onion viewed under the microscope grows underground.
-The purpose of chloroplasts is to make the plant green but onions are not green.
-Chloroplasts are organelles that absorb sunlight energy and perform photosynthesis.
-Plant parts that grow underground are not exposed to sunlight.
-Onions had chloroplasts before they were picked from the ground but the chloroplasts dried up and disappeared after being exposed to the sunlight.
-Onions are not plants and therefore do not have chloroplasts.
-Plant parts that are not exposed to sunlight cannot do photosynthesis.
What happens if you drop some type of liquid on a cable such as a phone charger? Can you get hurt? Can you still use it?
Kind of a weird question lol
It really just depends. If the liquid got in any crevices it might not work. If it wasn't plugged in, no you cannot get hurt. But I've had chargers that I spilled water on and they still work fine, but again, it depends. Like if there's a tear in the cord that liquid got in, then no it probably won't work anymore.