Answers
Answer:
XnY
Explanation:
II-2 is a male so the genotype must have a Y in it. Majority of the other options do not have Y, so they are incorrect. Because the individual is male, the father has passed a Y chromosome, while the mother has passed an X chromosome. The X chromosome is Xn because the mother is hemolytic, which is a recessive trait. So both the mother's X chromosomes carry the hemophilia trait.
Related Questions
When a cold Front is approaching, what happens?
A. warm air is pushing under cold air causing humid weather and lower temperatures
B. warm air rises, cools, and causes rain and thunderstorms abruptly
C. warm air is pushing under cold air causing humid weather and higher temperatures
D. Cold air is pushed over warm air causing rain and thunderstorms
Answers
Answer:
B
Explanation:
i had that question
15 points!
What are the independent, dependent and controlled variables in the following investigation?
-Mayra tested three brands of conditioner to see which made her hair feel softest.
Answers
Answer:
ind: type of conditioner used
dep: how soft the hair is
controlled: type of shampoo used
Explanation:
ind- the variable that the person doing the experiment chages
dep- the variable that changes due to the change in the ind variable
cont-doesn't change
Alexander Fleming discovered a type of
that kills bacteria, which led to the development of Penicillin.
Answers
Answer:
mold
Explanation:
Alexander Fleming was a Scottish physician and scientist. He was known for the development of penicillin.
Alexander Fleming discovered a type of mold that kills bacteria, which led to the development of Penicillin.
The mold created around itself a bacteria-free circle.
Fleming experimented further and named the active substance penicillin.
Answer:
Alexander Fleming discovered a type of mold that kills bacteria, which led to the development of Penicillin.
Explanation:
This system perpares food for cellular utilization.
Answers
Answer:
The answer is
The digestive system prepares food for the cellular utilization.
I hope this might help u
(HELP) what types of elements that bond with ionic and covalent bond.
Answers
IF YOU WANT POINTS HERE YOU GO!!! ANSWER THE QUESTIONS CORRECTLY AND I WILL MARK BRAINLIEST!!! ON THE THIRD PICTURE, ANSWER THE HIGHLIGHTED PARTS. BE SURE TO READ THE DIRECTION CAREFULLY!!!!!!!!!
Answers
what are the bases found in DNA
Answers
A person with type O blood is married to a person with type A blood (unknown genotype). They have 6 children, 3 of them have type A blood, three of them have type O blood. What is the genotype of the two parents?
Answers
Answer:
Ao & oo
i don't really know if the answer is this....
Answer:
Oo
Explanation:
The three arrows in the diagram each represent a process known as?
(1) mitotic cell division
(2) meiotic cell division
(3) fertilization of gamete cells
(4) differentiation of tissues
Answers
Answer:B
Explanation:
1. Describe at least two experiments and discuss how they helped determine that DNA and not protein was the hereditary material.
2. What is the importance of the fact that the sugar-phosphate backbone of DNA is held together by covalent bonds, and that the two strands are held together by hydrogen bonds.
3. Explain how the 3’ and the 5’ end of the DNA molecule affects DNA replication.
4. Telomerase activity can both shorten and lengthen cancerous cell lifespan. Describe how both are possible.
PLEASE HELP ME, ITS OKAY IF YOU ONLY ANSWER ONE :)
Answers
How does the support structure of echinoderms differ from that of arthropods?
will give brainliest
Answers
Hope this helps!
Answer:
I would say the main difference is their covering. Arthropods have an exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons. Overall, arthropods are more closely related to nematodes than echinoderms.
Happy learning!
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Which statement(s) are true about mutations? (select all that apply)
a. They can be neutral
b. They are only heritable if they occur in gametes
c . They are always heritable
d. They can be beneficial
Answers
Answer:
a, c, d,
Explanation:
they are more than genetic, and with that said, also cancels out b
please answer the question in the picture if you know the answer and thxxx :) :) :)
Answers
26.C
27.A
28.C
Hope I’m not too late
In cats, the allele (B) produces black color but (b) produces a yellow color. These alleles are incompletely dominant to each other. A heterozygote produces a tortoise shell color. The alleles (B) and (b) are sex-linked as well. Cross a tortoise shell female with a yellow male.
A.vWhat percent of their offspring will be yellow?
B. What percent of their offspring will be black?
C. What percent of their offspring will be tortoise shell?
D. Why is it impossible to have a tortoise shell male offspring?
Answers
Answer:
a. 50%
b.25%
c. 25%
d. Why is it impossible to have a tortoise shell male offspring? the x chromosome, a male can only have one copy of the allele - either B. orb, not both!
Explanation:
Alleles can be referred to as alternate forms of a gene. Incomplete dominance refers to two true-breeding parents crossed to give an intermediate phenotype.
The allele (B) produces black color but (b) produces a yellow color. A heterozygote produces a tortoise shell color (Bb)
Cross a tortoise shell female with a yellow male.
Bb x bb
Bb Bb bb bb
c. Bb --- 50% tortoise shell color
a. bb --- 50% yellow color.
b. No black -- 0%.
d. The males offspring cannot be tortoise shell because they have just the one X chromosome on which this gene resides. So they are either black or yellow.
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which led to the development of Penicillina??
Answers
Answer:
Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming as a crude extract of P. rubens. Fleming's student Cecil George Paine was the first to successfully use penicillin to treat eye infection (ophthalmia neonatorum) in 1930.
Explanation:
Answer:
Is that you?????
Explanation:
what is the cocoon in the lifecycle of silkworm?
Answers
Answer:
A cocoon is a protective casing that protects and shelters the silkworm while its transitioning from predators and other threats. Within the cocoon the silkworm transitions into a pupa, the pups is the stage between the larvae and adult moth. After two weeks the pupa finishes it's transition into a moth.
Asexual reproduction of organisms normally results in new organisms that contain cells with
Answers
Answer:
Explanation:
cell that contains two complete sets of chrom ... reproduction of diploid 0rg~~-ms normally results in new 0rga~-~~ms that ... what would most likely happen if miis was not accompanied by cytoplasmic division .
Answer:
the same number of chromosomes found in the cells of the parent
Explanation:
What qualities have human promoted through selective breeding (artificial selection)?
Answers
Explanation:
Humans have selectively bred plants and animals for thousands of years including: crop plants with better yields. ornamental plants with particular flower shapes and colours. farm animals that produce more, better quality meat or wool.
What are the three main parts of the nervous system
Answers
Answer:
brain, spinal cord, and nerves
Explanation:
you could be meaning something else but this is what i was taught in anatomy
Answer:
They are the: Central nervous system,
Peripheral nervous system,
Automatic nervous system.
Celula encargada del desdoblamiento de material disuelto en las células, por medio de enzimas encargadas de reciclar todo todos el material químico disponible
Answers
Answer:
Si.
Explicación:
Sí, la célula es responsable del despliegue del material disuelto en las células con la ayuda de enzimas que se encarga de reciclar todos los materiales químicos disponibles. Los materiales tomados por la célula del entorno exterior se pueden descomponer en moléculas más pequeñas con la ayuda de enzimas que aceleran las reacciones químicas en la célula. Hay varias enzimas presentes en el citoplasma de la célula que realiza su función.
4
A neurone is a type of specialised animal cell.
(a) (i) Neurones develop from unspecialised cells.
State the name of these unspecialised cells.
Answers
Answer:
Stem cells
Explanation:
Stem cells are immature or unspecialized cells
Neurons develop from unspecialized cells and unspecialized cells are stem cells.
What are the functions of stem cells?
Embryonic stem cells are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization.
Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.
The cells of the bone marrow produce all of your healthy blood cells, including red blood cells, white blood cells, and platelets.
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Please Help
how did the investigators confirm the suspect that killed the mission director?
Gattaca Movie Question
Answers
Explanation:
why u want to know why u disturb ur mind by things which are already written in books
Maintaining safe water for drinking is an important goal for municipal water supply strategy. One of the last step
in drinking water treatment includes disinfection, a process that is used to
O A. remove chlorine from water
O B. kill waterborne pathogens
O C. add iodine to prevent goitre
O D. remove mercury water
Answers
how is the structure of a nerve cell specialised to carry out its functions
Answers
Answer:
A typical neuron consists of a cell body (soma), dendrites, and a single axon. The soma is usually compact. The axon and dendrites are filaments that extrude from it. Dendrites typically branch profusely and extend a few hundred micrometers from the soma. The axon leaves the soma at a swelling called the axon hillock (the axon hillock also has the greatest density of voltage-dependent sodium channels. This makes it the most easily excited part of the neuron and the spike initiation zone for the axon) and it branches but usually maintains a constant diameter. At the farthest tip of the axon's branches are axon terminals, where the neuron can transmit a signal across the synapse to another cell.
In general, dendrites receive the electrical signal from other neurons, and this signal is transmitted over long distances from the axon.
Like all animal cells, the cell body of every neuron is enclosed by a plasma membrane, a bilayer of lipid molecules with many types of protein structures embedded in it. A lipid bilayer is a powerful electrical insulator, but in neurons, many of the protein structures embedded in the membrane are electrically active. These include ion channels that permit electrically charged ions to flow across the membrane and ion pumps that chemically transport ions from one side of the membrane to the other to generate the action potential that generates the electrical signal. They also have a highly developed synthetic apparatus for the production of neurotransmitters
Plants have low energy needs as compared to animals. Explain.
Answers
➜ Plants do not move. In a large plant body there are many dead cells like schlerenchyma which provide strength to the plant but do not perform any cellular function. As a result they requires less energy. Animals, on the other hand, need energy for different activities like movement or search or food. So, they require more energy.
➥ Plants have low energy needs as compared to animals because they do not move. Moreover, in a large plant there are many dead cells like sclerenchyma because of which they also need less energy.
Can someone please help me
Answers
HELP!!!!! 50PTS!!!!!!
Most Swiss starlings produce four to five eggs in each clutch. Starlings producing fewer or more than this have reduced fitness. Which of the following terms best describes this situation? (3 points)
The bottleneck effect will result in a small gene pool with little genetic diversity.
Directional selection will happen because the population individuals will be unable to adapt, leading to extinction.
Disruptive selection will result in the population of birds' risk decline, due to reduced number of eggs.
Genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection. I think is D
Answers
Answer:
D: genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection.
Explanation:
Genetic diversity allows for birds to produce an ideal number of eggs, which leads to stabilizing selection. The correct option is D.
What is genetic diversity?The spectrum of various inherited traits inside a species is referred to as genetic diversity.
There would be many individuals with a wide range of different traits in a species with high genetic diversity. For a group of related species to adapt to changing environments, genetic diversity is mandatory.
Genetic diversity aids the populations to adapt to altering environments. More variation boosts the likelihood that some individuals in a population will have allele variations that are suited to the environment. Those people are more likely to survive and have children with that allele.
Birds can produce an optimal number of eggs due to genetic diversity, which leads to stabilizing selection.
Thus, the correct option is D.
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There are no carriers for Huntington's Disease -- you either have it or you don't. With this in mind, is Huntington's disease caused by a dominant or recessive trait?
a) dominant
b)recessive
c)It cannot be determined
d)It varies depending on whether an individual has one or two copies of the allele
Answers
HELPPP
HURRYYYYYYYYYY
Answers
Answer:
The results of restoration of this kind can include improved habitats for fish, birds and other wildlife, protection against flooding, better water quality, enhanced recreational opportunities, and increased economic opportunities through activities such as commercial fisheries and tourism.
Explanation:
The dangers of electrical shock can vary depending on the situation. Which of
the following would be the most dangerous (most likely to get a nasty shock!) ...
Answers
Answer:
Water
Explanation: