The F1 mother of these progeny (F2) resulted from a cross between two flies from true breeding lines (P generation). What are the genotypes of these two lines
The question is incomplete. The complete question is :
In fruit flies, the recessive pr and cn mutations cause brown and bright-red eyes, respectively (wild-type flies have brick-red eyes). The double mutant pr cn combination has orange eyes. A female who has wild-type eyes is crossed to an orange-eyed male. Their progeny have the following distribution of eye colors:
wild-type8
brown241
bright-red239
orange12
500
The F1 mother of these progeny (F2) resulted from a cross between two flies from true breeding lines (P generation). What are the genotypes of these two lines ?
Answer:
prprcn+cn+ and pr+pr+cncn
Explanation:
Progeny is the offspring or descendants of any animal, plant, human or a species.
In the context, it is given that the cn mutation and recessive pr in the fruit flies makes brown and bright red color eyes. And the double mutant of pr and cn combination makes orange eyes. An oragne eye males is crossed with a female having a wild type eyes. Now for this, the F1 mother of the progeny F2 which results from the cross of two flies, the genotypes is " prprcn+cn+ and pr+pr+cncn. "
Volcanoes can form near coastal regions where an oceanic plate [blank] below a continental plate
Answer:
Subducts
Explanation:
According to Merriam Webster and TheFreeDictionary, the definition of subduct is "A geologic process in which one edge of one crustal plate is forced below the edge of another." Since this sentence indicates that an oceanic plate sinks under the continental plate, therefore I believe the fill-in-the-blank word would be 'subducts' or a similar word.
Which of the following is true about CO_2CO
2
?
A
It does not have much effect on the climate.
B
It is a greenhouse gas.
C
Very little CO_2CO
2
is being emitted now.
D
If we cut CO_2CO
2
emissions by half, the temperature will stop rising.
Answer:
B.
Explanation:
It has a huge impact on the environment
It is being emitted in large amounts
And if we cut our carbon emissions in half it would delay the risk of raising the global temperature of 1.5 degrees Celsius but half of it would still pumped into the atmosphere along with the carbon dioxide already in the atmosphere.
But it is a greenhouse gas because it helps trap the heat remaining in Earth's atmosphere which is why the Earth is warming.
CO2 is a greenhouse gas.
what are greenhouse gases?
Greenhouse gases are gases in the atmosphere that affect the energy balance of the planet. The greenhouse effect is caused by them. Carbon dioxide (CO2), methane, and nitrous oxide, the most well-known greenhouse gases, can all be present in low concentrations in the environment.
The greenhouse gases in the atmosphere trap heat and warm the earth.
Carbon dioxide, methane, nitrous oxide, and water vapor (all of which exist naturally) are the principal greenhouse gases, as are fluorinated gases (which are synthetic).
Carbon dioxide (CO2) is released into the atmosphere as a result of the combustion of fossil fuels (coal, natural gas, and oil), solid waste, trees, and other biological materials, as well as chemical processes (e.g., manufacture of cement). As part of the biological carbon cycle, carbon dioxide is absorbed by plants and released from the atmosphere.
hence, CO2 is a greenhouse gas.
To know more about greenhouse gas here
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The health department is responsible to make sure there are written directions for critical control point procedures.
True
False
Answer:
I think it's true...
Explanation:
Answer:
True
Explanation:
edge2021
___is a process that tells cells to stop dividing if they touch each other.
Answer:
Contact inhibition
Choose all the answers that apply.
Eukaryotes _____.
are always multicellular
are always unicellular
may have evolved from prokaryotes
have membrane-bound organelles
have a true nucleus
are more primitive than prokaryotes
Answer:
3 answers
Explanation:
may have evolved from prokaryotes
have membrane bound organelles
have a true nucleus
Hope it helps.....
What would make the water in a small region of the ocean more salty?
A. heavy rainfall over the region
B. melting an iceberg in the region
C. water from a river running into the region
D. evaporation of a lot of the water in the region
Answer:
Its C
Explanation:
Checked it and got it right
You have adopted a gray mouse, which you know is a wild type phenotype. When crossed with a white mouse, your gray mouse has a first litter of 3 gray mice and 2 white mice. In the second litter, you observe 3 gray mice and 4 white mice. What is the probable genotype of your gray mouse
Answer and I will give you brainiliest
heeeeelp PLZ
A large bowl contains a mixture of soil and iron powder. What would be the best way to separate the iron powder from the soil?
Answer:
Add magnet to the bowl, cover the bowl, and shake well
Explanation:
Anything with MAGNET
look at the picture
Answer:
What was the question of it
*anatomy & physiology question*
if you are at 120X and the field diameter is 8.0 mm what is the field diameter if you go to 30X magnification?
Answer:
32 mm
Explanation:
The field of view is the total area visible through the microscope . The diameter of the field of view can be measured.
There is an inverse relationship between the magnification and the field diameter. As magnifications decreases, the field diameter increases by the same proportion, and as magnifications increases, the field diameter decreases by the same proportion.
The relationship between field diameter and magnification is:
magnification of A * field diameter of A = magnification of B * field diameter of B
120X * 8 mm = 30X * B
B = 120X / 30X * 8 mm
B = 32 mm = 32000 μm
The field diameter of 30X magnification is 32 mm (32000 μm)
a sound wave traveling through dry air has a frequency of 16 Hz, a wavelength of 22 m, and a speed of 350 m/s. When the sound wave passes through clouds of nitrous oxide, it’s wavelength changes to 16 m, while it’s frequently remains the same. What is it’s new speed?
Daphne identifies the entire sequence of nucleotides in a gene. Based on this information and the genetic code, she predicts the sequence of amino acids in the protein that the gene codes for. What is the MOST LIKELY reason that Daphne’s prediction would be incorrect?
The gene codes for a carbohydrate, and not a protein.
A mutation changes the genetic code that the cell uses.
The cell removes introns from pre-mRNA.
The cell removes introns from DNA.
Answer:
The cell removes introns from pre-MRNA
Explanation:
from his monohybrid crosses, Mendel developed his first law
Answer:
Im confused but if your asking for Medel's first law it would be states that for the pair of alleles an individual has of some gene (or at some genetic locus), one is a copy of a randomly chosen one in the father of the individual, and the other if a copy of a randomly chosen one in the mother, and that a randomly chosen one will be copied
Explanation:
Lab: Natural Selection answer in the link pls 50 points and
Which two structures are found at the outside of the cell?
Answer:
All cells share common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell.
What is the medical term for the process or procedure that destroys or inhibits disease-causing microorganisms to prevent infection:
Answer: Sterilization.
Explanation:
Sterilization is the process that kills, or deactivates all forms of life so then a product is considered free of viable microorganisms. This process must be designed, validated and carried out to ensure that it is capable of eliminating the microbial load of the product.
Since sterility cannot be demonstrated without causing the complete destruction of the products, sterility is considered when the probability of a product being contaminated is acceptably remote. A critical product is considered sterile when the probability of a microorganism being present in an active or latent form is equal to or less than 1 in 1,000,000 (sterility safety factor 10^-6).
Agents that kill microorganisms are called microbicides or more commonly called "germicides". If the agent kills bacteria, it is called a bactericide. And if it kills fungi, then it is called a fungicide. It is important to consider than after an exposure of the sterilized object to the air or its surroundings, it will have become contaminated again with microorganisms.
Examples of sterilization include physical methods and chemical methods. Physical methods include:
Wet heat (in steam autoclave) Dry heat (in sterilization oven) Radiation (gamma radiatio, electron beam, X-ray, ultraviolet, microwave, white light)Chemical methods include a variety of chemicals in liquid and vapor form, for example:
Hydrogen peroxideChlorine dioxideOzone gasesEthylene oxidePropylene oxidePeracetic acidWhich description represents a medium?
a - energy that moves with a wave
b-midway point through a wave
c- a wave that can travel through a vacuum
d- material through which waves can travel
The pathophysiology of osteomalacia involves a. collagen breakdown in the bone matrix. b. inadequate mineralization in the osteoid. c. crowding of cells in the osteoid. d. increased osteoclast activity.
Answer:
The correct answer is - b. inadequate mineralization in the osteoid.
Explanation:
Osteomalacia is a condition where the bones become weak and soft, this bone softening is occurred due to mainly vitamin D deficiency that also causes rickets. It leads to insufficient or inadequate mineralization in the osteoid.
This conditing when takes place in kids and young adult leads to curve or bowing during the growth period. In this case, bones are very prone or easily fractured.
1. Below is a diagram of the male
reproductive system. Which structure is
represented by D?
A. scrotum
B. testes
C. prostate gland
D. epididymis
Answer:
A:scrotum
Explanation:
its part of the male reproductive system. I looked it up.
What is RNA primase's job?
-removing a few bases for DNA polymerase
-add a few bases for DNA polymerase
-removing a few bases for helicase
Answer:
The correct answer is - add a few bases for DNA polymerase
Explanation:
A short extended nucleic acid composed of ssRNA molecule. This is a molecule that synthesize a primer initialy and later again lay down a primer after the opening of replication fork by DNA helicase.
It sysntheisze before and after the helicase and follow the helicase in order to prepare for the replication process. Thus, adding a few bases for DNA polymerase is main job of RNA primase.
How will weathering and erosion most likely affect the Grand Tetons over the next 9 million years?
A.
The Grand Tetons will stay exactly the same as they are today.
B.
The Grand Tetons will become steeper and more rugged.
C.
The Grand Tetons will become less steep and more rounded.
D.
The Grand Tetons will become much taller than they are today.
Answer:
the correct answer to the question in c
Answer: C)The Grand Tetons will become less steep and more rounded.
Explanation:
How will weathering and erosion most likely affect the Grand Tetons over the next 9 million years? C)The Grand Tetons will become less steep and more rounded.
Mistakes are sometimes made in duplicating or transmitting genetic information. These mistakes are called
Answer:
Mutation
Explanation:
Mutation is any alteration or change in the genetic sequence of a gene caused by mutagens (substances) or mistakes during replication of genetic sequences.
A mutation occurs in the gene from time to time, although, the cell has protocols in place to put them under control if they occur. However, when DNA or a gene is being copied and transferred to offsprings, there is bound for mistakes called MUTATION to occur.
Apply: Which type of moth do you think was more common before the 19th century, when most trees were light in color?
Answer:
light moths
Explanation:
yes their were most light color in most trees
Light moths was more common before the 19th century, when most trees were light in color.
What are the functions of light moths?Insects, like moths, are drawn to bright lights because they make it difficult for them to navigate. It's a common sight, particularly in the summer: The lights, like lamps, were surrounded by moths and other insects.
Most nocturnally dynamic moths are drawn to light, a peculiarity known as sure phototaxis. However, because they are phototactic, some species, like the Old Lady (Mormo maura), tend to avoid it.
No one really knows why moths are drawn to light, but there are a few theories, and they also like the smell of fermented sugar and ripe fruit, which are both food sources.
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Question 20 of 26
How many daughter cells does mitosis produce?
A) 2.
B) 4
C) 23
D) 46
Answer:
A) 2.
I hope it helps :)
Explanation:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase.
Body Cells are
O A) 1N
O B) 2N
O C) 4N
OD) 21N
Answer:
B) 2N
Explanation:
Body cells have 46 chromosomes and are called 2N cell. It's a diploid cell.
2N = 4 chromatids. During meiosis, the 2N cell divides into 4 nonidentical 1N cells.
ALOT OF POINTS PLEASE HELP :)
How did humankind discover the presence of DNA?
Answer:
The real breakthrough in understanding DNA, however, came with the discovery of its structure in 1953. The discovery of the structure of DNA is often credited to James Watson and Francis Crick.
Explanation:
which statement describes what happens to rocky shorelines that absorb energy from ocean waves?
Answer:
Solid rock break apart
Explanation:
Which activity can be accomplished using the genetic code?
O A polypeptide can be made into mRNA
. DNA can be made into mRNA
O RNA can be copied before mitosis.
O mRNA can be made into tRNA
Answer:
DNA can be made into mRNA
Explanation:
