Answer:
Brown eyed genotype: Aa (eterofzygous) or AA (homofzygous)
The genotypes derived from the cross are: AA, Aa, Aa, aa
The phenotypes are: 3 with brown eyes and 1 with blue eyes (aa)
The phenotypic ratio is 3:1 (brown eyes: blue eyes) and the genotypic ratio is 1:2:1 (dominant homozygous: heterozygous: recessive homozygous).
What happens in a heterozygous cross?In humans, the allele for brown eyes (B) is dominant over the allele for blue eyes (b). Heterozygous individuals, who carry one copy of each allele (Bb), will have brown eyes.
When two heterozygous brown-eyed individuals (Bb) cross, the possible genotypes of their offspring are:
BB (brown eyes): 25% chance (homozygous dominant)
Bb (brown eyes): 50% chance (heterozygous)
bb (blue eyes): 25% chance (homozygous recessive)
So, the genotypic ratio of the offspring is 1:2:1 (BB:Bb:bb).
As for the phenotype, the only possible one is brown eyes and it occurs in 75% of the offspring (25% BB + 50% Bb)
Therefore, the phenotypic ratio of the offspring is 3:1 (brown eyes: blue eyes)
It's worth noting that while this is the typical outcome of crosses involving the eye color genes, it's not universally accurate, as other factors and genes might have an influence on the phenotype. Additionally, in reality, eye color is a complex trait and many other genes are involved not just B and b, so the dominance is not always that clear.
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This Venn diagram is being used to compare the characteristics of nonvascular and vascular plants.
Which characteristic is shared by the two plants, and can therefore be placed in the overlapping section?
have roots
perform photosynthesis
have xylem and phloem
produce seeds
Answer:
perform photosynthesis
The specific xylem and phloem tissues that vascular plants (tracheophytes) have for supporting and conducting water and food, respectively, set them apart from nonvascular bryophytes.Thus, option B is correct.
What best defines about nonvascular and vascular plants?The existence of chloroplasts and the green pigment chlorophyll, which enable plants to carry out photosynthesis, is the fundamental similarity between these two plant groupings. Due to their capacity to manufacture their own food, plants are now the main contributors to the ecosystem's production.
Tracheophytes are another name for vascular plants. Pteridophytes, gymnosperms, and angiosperms are among them.Nonvascular plants lack the specialized vascular system required to transmit water and nutrients. Examples of simple structures that are specialized for doing transportation are those found in algae and bryophytes.
Therefore, perform photosynthesis characteristic is shared by the two plants.
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what is the name given to animals that feed on plants for food?
Answer:
herbivores
Explanation:
Brainliest involved :) help
Answer:
B
Explanation:
A haploid has one, which refers to the sex cells (eggs/sperm)
diploid has 2
Sam started his morning walk from the location indicated by the point below.
61
4
start
24
x
-6
-4
2
1
-21
-4
He walked 5 units south and met his friend Joshua. After that, he walked 2 units east and there he bumped into his friend Ethan.
At what location on the coordinate grid did Sam meet Ethan?
OA. point (-3,5)
B. point (-1,-3)
Oc.
point (-3,-5)
O
D. point (-3,-1)
Answer:
(-1,-3) on the coordinate grid.
Explanation:
The location from where Sam started his morning walk is 3 units to the left and 2 units up from the origin. This location is indicated by the point (-3,2).
He walked 5 units south and met his friend Joshua.
So, find the point that is 5 units to the south of point (-3,2). Distances north and south on the map represent a change in the y-coordinate. Moving 5 units to the south on the map from point (-3,2) places the new location at point (-3,-3).
Sam then walked 2 units east, where he met his friend, Ethan.
So, find the point that is 2 units to the east of point (-3,-3). Distances east and west on the map represent a change in the x-coordinate. Moving 2 units to the east on the map from point (-3,-3) places the new location at point (-1,-3).
So, Sam met Ethan at the location indicated by point (-1,-3) on the coordinate grid.
Answer:
-1, -3
Explanation:
yoo i had this question on a study island!!
Meiosis only occur in what type of cells?
Answer:reproductive cells
Explanation: Meiosis only occurs in reproductive cells, as the goal is to create haploid gametes that will be used in fertilization. Meiosis is important to, but not the same as, sexual reproduction. Meiosis is necessary for sexual reproduction to occur, as it results in the formation of gametes (sperm and eggs).
How is photosynthesis and cellular similar, and how are they different?
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.
identify what type of mutations is occuring below original mrna: aug gcu uug and mutated mrna aug gca uuu g
Answer:
deletion
Explanation:
1. Snapdragons can be red (RR), white (WW), or pink (RW). Cross a red snapdragon with a pink snapdragon. Give the genotype and phenotype percentages.
Answer:
RR (hom0zygous dominant) - 50%
RW (heterozygous) - 50%
Red flower - 50 %
Pink flower - 50%
Explanation:
To solve this problem, we need to use a Punnett square. A red snapdragon has a genotype of RR and a pink snapdragon has a genotype of RW.
R R
R RR RR
W RW RW
50% of the offspring would have the RR genotype (hom0zygous dominant) and 50% would have the RW genotype (heterozygous). The RR genotype results in a red flower, and the RW genotype results in a pink flower, so 50% of the offspring would be red and 50% would be pink.
Compare and contrast kinetic and potential energy.
Answer:
Potential energy is when something has the potential to move. Kinetic energy is when something is moving
Answer:
They’re both energies, kinetic is moving, potential is potential of movement which means it’s not moving
Explanation:
I don't need help can someone just tell me if this sounds ableist it's for my biology video report homework
I wish mental disorders aren't a thing and if someone does have BPD or any other mental disorder they should get help.
Answer:
yeah it sounds good good luck
P - Artificial active immunity
Q - Natural active immunity
Question:
In your opinion, which immunity is the best? Why?
Anyone plz help this question...?
Answer:
The correct answer would be - natural active immunity.
Explanation:
Active immunity is the immunity that includes that develops antibody by the immune system after exposure to a pathogen naturally through disease or artificially by the process of immunization. This type of immunity is a long-lasting immunity.
If the active immunity is deliberately developed by exposure of antigen to the patient is called Artificial active immunity whereas natural immunity takes place through contact with a disease-causing agent.
In my opinion, natural active immunity is best as it is a fact that natural infection almost always causes better immunity than vaccines.
Can someone answer this
Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.
I would say "A"
characteristics of humus in soil profile
Answer:
Humus has a characteristic black or dark brown color and is an accumulation of organic carbon. Besides the three major soil horizons of (A) surface/topsoil, (B) subsoil, and (C) substratum, some soils have an organic horizon (O) on the very surface.
If you designed your own experiment to prove the law of conservation of matter, what conditions would be required?
Answer:
The amount of matter is conserved when a substance changes form. When matter changes drastically it is not actually destroyed. This can be tested by weighing all the materials involved in an experiment before starting it, and again after the
what would happen if a c were inserted between the first and second codons
Answer:
mutations
Explanation:
mutations are errors in codons caused by changes in nucleotide bases.
The technology in the picture produces which energy conversion?
If a genetic disorder is recessive, how do offspring develop the disorder?
Group of answer choices
They inherit a faulty gene from one parent.
They inherit a faulty gene from each parent.
Their genes mutate in response to their parents’ genes.
Their genes are affected by the environment
What are three factors that limit a population's ability to adapt and survive?
Answer:
Not enough time, Not possible, Not enough variation
Explanation: I am 100% sure this is the answer i have looked it up multiple times. good luck, and hope this helps...
Which of these is a way to bring animals back from the brink of extinction?
a) captive breeding
b) in-vitro fertilization
c)cloning
d) all of the above
Answer:
If we could pick more than 1 i would pick b) and c)
But if only 1 then pick d) because captive breeding would be one but not the most efficient
Explanation:
what are some impacts solar energy has on the environment?
First person to answer will be awarded brainiest!
Answer:
Solar energy systems/power plants do not produce air pollution or greenhouse gases. Using solar energy can have a positive, indirect effect on the environment when solar energy replaces or reduces the use of other energy sources that have larger effects on the environment.
Explanation:
Some snake embryos have small buds resembling limbs. These buds disappear at later stages of embryonic development. These observations suggest that these snakes – a. will have offspring with limbs b. had a parent with working limbs c. have functional limbs as adults d. evolved from a limbed ancestor.
Answer:
so?
Explanation:
If a tumor invades surrounding tissue, it is called:
benign.
malignant.
metastasis.
biopsy.
Find out about the destruction of therain forests in South and Central America. At what rate isthis precious habitat being destroyed? How many species ofplants and animals live in this region, and how many wouldbe threatened? Obtain up-to-date figures from an unbiasedsource, and use the species-area relationship to make moreprojections on how many species will become extinct in therain forests if current rates of habitat destruction continuefor the next 50 years. Create a line graph to show the rate ofextinction for these groups: insects; mammals; birds; trees;flowering plants; nonflowering plants; reptiles; amphibians.
I WILL GIVE YOU BRAINLIEST AND I WILL GIVE YOU MORE POINTS, PLS HELP
What will most likely happen if the relative humidity reaches 100% and the air temperature is very high??
Describe the causes of Weathering and Erosion here: (image 1 with grass)
Hawaii Coastal Cliffs are amongst the tallest cliffs in the world. What causes their formation? (image 2 with a bunch of water)
Based on the pattern of Erosion seen in these images, describe the causes of their formation. (image 3)
Answer:
(image 1) Weathering breaks down the Earth's surface into smaller pieces. Those pieces are moved in a process called erosion, and deposited somewhere else. Weathering can be caused by wind, water, ice, plants, gravity, and changes in temperature. As waves attack the shore, headlands are eroded, producing steep sea cliffs. The waves vigorously attack the portion of the cliff near sea level where joints, fissures, and softer strata are especially vulnerable. The cliffs are undermined and caves are formed. The three main forces that cause erosion are water, wind, and ice. Water is the main cause of erosion on Earth. Although water may not seem powerful at first, it is one of the most powerful forces on the planet.
Explanation:
Hope this will do!
Have a great day!
-jmora273
P.S Remember the Name!!!
We have 2 genes here, so we are coding for 2
different traits, AKA 2 distinct and separate
phenotypes
However, both phenotypes are present in each
offspring cat.
So, for example we could have a hairy, sink-
loving cat (like one of the parents) or a
hairless, sink-hating cat (like the other
parent). What are the other possibilities for
phenotype?
Make sure to include both traits (hair/hairless
and feelings about sinks) for each possible
phenotype.
Answer:
50% hairy and love sinks
50% hairless and hate sinks
A nonrenewable resource that developed from the remains of ancient plants that lived in large swamps millions of years ago is:
A. Coal
B. biomass
C. solar
D. Nuclear
Answer:
★ A nonrenewable resource that developed from the remains of ancient plants that lived in large swamps millions of years ago is COAL
Explanation:
Hope you have a great day :)
Which of the following zoonotic diseases is most dangerous?
brucellosis
mad cow disease
campylobacteriosis
influenza
Answer mad cow disease
Explanation:
100% case mortality rate
Humans may acquire the disorder by eating diseased meat products. When it comes from cattle, the disorder is called Creutzfeldt-Jakob disease and ultimately leads to dementia and death. The condition is rare.
The disease is marked by rapid mental deterioration, usually within a few months. Most people eventually lapse into a coma.
Treatment focuses on keeping the person as comfortable as possible.
Two populations of a species of flightless bird became separated by a river and the birds became two different species. How would scientists be able to discover that the two species of birds share a common ancestor? Scientists can look for similarities in - a . body coverings b. genetic similarities c. food choices d.mating rituals.
Answer: B, genetic simularities
Which of the following is the definition for speciation?