The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers. (p + q = 1, p2 + 2pq + q2 = 1)
Answer:
The no. of heterozygous carriers = 0.0392
Explanation:
From the given information:
The incidence of this recessive disorder i.e. q² = 1/2500
q² = 0.0004
q = 0.02
From Hardy Weinberg's Equilibrium.
p + q = 1; &
p² + 2pq + q² = 1
∴
p + 0.02 = 1
p = 1 - 0.02
p = 0.98
So, the numbers of heterozygous carrier 2pq is:
= 2 × 0.98 × 0.02
= 0.0392
Which type of rock is diorite?
O A. Sedimentary
O B. Intrusive igneous
O C. Extrusive igneous
O D. Metamorphic
Answer:
Intrusive Igneous
Explanation:
It is commonly composed of about two-thirds plagioclase feldspar and one-third dark-coloured minerals.
Explain how autotrophs need both cellular respiration and photosynthesis
Answer:
They get energy from food. Autotrophs make their own food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. And as for cellular respiration, all organisms use it to break down glucose, release its energy, and make ATP.
Explanation:
_____________
Please select all that apply
Answer:
Cell renewal, growth, and asexual reproduction :)
Explanation:
Question 1 (4 points)
(04.01 LC)
Rocks created from the cooling of magma or lava are called (4 points)
Answer:
igneous rocks
Explanation:
brainliest plz?
Answer:
the answer is igneous rocks
Explanation:
I did the exact same test because I am also from the same school (FLVS)
9. What is the difference betwen climate and weather?
Answer:
Climate is the long-term weather, like it is usually sunny in Florida,
Weather is the weather that you see every day, such as rainy.
Explanation:
Answer:
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location.
Explanation:
Can someone please help ASAP
Answer:
I would say 2/4 or 3/4 sorry if its wrong
If the last pair reflects whether the organism is a male or female, which would this organism be?
Answer:
The individual is a male. Explanation: In mammals, sex is determined by a pair of sexual chromosomes.
What is the role of enzymes in the DNA replication process?
A. Enzymes read the DNA code and build a new DNA molecule from scratch.
B. Enzymes link together to form a template for a new DNA molecule to be built.
C. Enzymes split the DNA molecule into two rails and then transport corresponding nitrogenous bases to each rail.
D. Enzymes link adjacent nucleosides together, becoming an integral part of the structure of the new strands of DNA.
Answer:
B.
Explanation:
Explain why a diet consisting primarily of animal
based proteins has a larger environmental impact
than a plant based diet.
help I need this by 1:45 :’)
............................Please help ASAP ........................
Answer:
I think answer choice D
Explanation:
The passage summarized says that ostriches and rheas look exactly the same but are different sizes, therefore answer choice D is auto eliminated
what is the relationship between size and complexity?
Answer:
"The relational complexity in small groups increases rapidly with small increases in size." a greater rate than does the size of the group." forms of communication," to establish the importance of the concept of organizational com- plexity to the size relationship.
What molecule do bacteria take in (use up)?
Oxygen
Carbon Dioxide
Water
(This is 7th grade science)
How could one determine if two
unidentified organisms share a common
ancestor?
Answer:
Evolutionists determine that two organisms have a common ancestor is by looking at fossil evidence in different rock layers using the law of Superposition (Oldest layers are on the bottom, newest are on the top) and compare the skulls or other bones to each other in order of oldest to newest (or newest to oldest). Another way to determine this is to examine the amount of DNA a certain species shares with another species. An example of this would be that Humans share roughly 90% of our DNA with chimpanzees or the other Great Apes.
Explanation:
DNA
They can look at the DNA it's the most common one.
There are 4 pieces of evolution and they are
Fossils , Geography , Embryos / DNA , Anatomy
Fossils: Physical remains of species , Determine age, location, environment
Deeper layers = older
Geography: Proves species share common ancestors, depending on where
they live
DNA: BEST evidence because it’s the MOST ACCURATE
Similarities in the early stages of development
Similarities in DNA
More similarities = closely related
More differences = not related
Anatomy: Compare body parts of different species to see how they evolved
3 different structures:
Homologous (same structure, different function)
Analogous (similar structure, different organisms)
Vestigial (body parts that no longer serve a purpose)
All of that are in evolution
Hope it helped! ( Gave u my biology notes :D)
Which is more concentrated in starch beaker or tube?
Answer:
beaker
Explanation:
it is more concentrated
Question 14 (2 points)
(06.03 MC)
Which of the following correctly identifies a lymphatic organ and describes how it
can fight cancer? (2 points)
1) Lymph vessel; removes fluid from tissues
2) Lymph trunk; returns lymph to the blood
3) Spleen; replaces damaged red blood cells
4) Thymus; exposes lymphocytes to antigens
All of the statements correctly identify a lymphatic organ. In vertebrates, the lymphatic organs, also known as the lymphoid system, are an organ system that is a part of the immune system and works in conjunction with the circulatory system.
The Lymphatic OrgansLymphatic vessels, which are found all over your body and transport lymph away from tissues, are a network of capillaries (microvessels) and a huge network of tubes.By emptying into the corresponding subclavian veins, the lymph ducts, which are formed by the lymph trunks, restore lymph to circulation.Red blood cells that are outdated or damaged are eliminated by the spleen, which also removes cellular waste from circulation.Training specific white blood cells known as T-lymphocytes or T-cells is the thymus gland's main job.Hence, all of the statements correctly identify a lymphatic organ.
How lymphatic system fights Cancer?Regional lymph nodes, which are predictive of distant organ metastases and poor survival, are accessible to tumor cells via lymphatic arteries.As the lymph fluid moves through the lymph nodes, it is filtered. B cells and T cells, two types of white blood cells, assault any viruses or bacteria they discover in the lymph.To learn more about the Lymphatic System refer to:
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Ninety nine percent of the atmosphere is composed of _____ and _____.
Answer:
Ninety nine percent of the atmosphere is composed of Nitrogen and Oxygen
Answer:
78% nitrogen and 21% oxygen
Explanation:
If water was removed from a plant's environment what would happen to the plant's glucose production?
Answer:
It would cease
Explanation:
If water is removed from a plant's environment, the plant's glucose product will cease. This implies that the plant will stop producing glucose.
Water is an essential ingredient for the production of glucose by plants. During the process of photosynthesis, green plants manufactures their food in the presence of sunlight. The water combines with carbon dioxide to produce glucose oxygen gas using sunlight energy. Without water, this reaction will not be possible to take place. Therefore, the production of glucose stops when there is no water.Don’t comment unless you want a lot of notifications!!!
What are you if your Mexican black Asian white Hawaiian
Answer:
A human
Explanation:
What happens inside your body as you an oral report in front of your class? URGENT I need it quick, I will give brainliest!
Answer:
If you get nervous (which could happen alot) it feels like your body temperature is rising but really its not , and your face starts to turn red. And when you do an oral report you use your brain to read off the work and to show your knowledge.
Explanation:
is RNA an ezyme that belongs to a larger class of molecules
Answer:
nucleic acids
Explanation:
nucleic acids macromolecules made out of units call nucleotides come in two naturally occurring varieties deoxyribonucleic acid (DNA) and ribonucleic acid (RNA)
i hope this helps
What do you call protozoa that you can see with the naked eye?
Answer:
Paramecium protozoa
Explanation:
because of their size (50-300 μ long) and the human eye can see things as small as about 100 µm and P.
Summarize in 2-3 sentences, how an RNA vaccine works to help protect you against
viruses?
I
Answer:
boost your immune system
Explanation:
Answer:
Vaccination is the process in which substances called antigens are introduced artificially into the body to stimulate the immune system, the set of cells that protects the body against infections .
What determines which bases will be brought to the DNA strand during DNA replication?
Identity Factors in an Experiment
WARM-UP
Consider what you already know about scientific design. To set up an experiment testing whether
students' grades are affected by their level of exercise, which factors do you think you would need to keep
in mind? Check all that apply.
student gender
vpe of exercise
amount of exercise
what grades are measured
how long the experiment will last
what time of day the students exercise
how much time the students spend studying
DONI
Answer:
Did you copy and paste this from somewhere because i want to help but i don't understand it at all.
Explanation:
3. Gregor Mendel cross-pollinated red and white snapdragon flowers,
What information indicates that incomplete dominance was achieved?"
O the offspring had heterozygous allels
O the offspring had recessive alleles
O the offspring were pink
O the offspring were red
A chemical called a hormone, which changes a boy’s body, is produced from adolescence onwards.
(i) Where is this hormone produced?
Answer:
the testicals
Explanation:
What are gametes?
male and female reproductive organs
male and female reproductive tissues
male and female reproductive systems
male and female reproductive cells
Answer:
male and female reproductive cellsExplanation:
I hope it helps ❤❤Answer:
the last one
Explanation:
I WILL GIVE BRAINLIEST!!!
Cat coat color is an X-linked trait.
Calico cats typically have patches of black, white, and orange on their coats as a result of X-inactivation. Most calico cats are female, but rarely a male calico will be born into a litter.
Which of the following could explain calico coat color in a male kitten?
Choose 1 answer:
(choice A)
A
The male kitten has a genotype of XXY.
(choice B)
B
The male kitten has a genotype of XXX.
(choice C)
C
The male kitten has a genotype of XYY.
(choice D)
D
The male kitten has a genotype of YY.
Answer:
d)Explanation:
mark as brainleast and fo-ll-ow me
What size molecules can pass through a cell membrane by a process called passive transport?
Answer:
diffusion and osmosis
Explanation:
lipid_ soluble substance
through lipid baleyer
through protein channel
Transported proteins carry small substances like water, amino acids, and charged ions. One to fifteen angstroms is the range in molecule size that can pass through the membrane. The easier it is for a molecule to move across the cell membrane, the smaller it is.
What is cell membrane ?All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
Small molecules or ions can traverse the cell membrane passively without the cell providing any energy. The three basic types of passive transport are osmosis, assisted diffusion, and diffusion.
Gases like oxygen and carbon dioxide, as well as small hydrophobic compounds, quickly traverse membranes. Water and ethanol are examples of small polar molecules that can move across membranes, though more slowly.
Thus, The easier it is for a molecule to move across the cell membrane, the smaller it is.
To learn more about cell membrane, follow the link;
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