P (purple) and p (white) are the dominant and recessive alleles for flower color in peas. Similarly, A (axial) and a (terminal) are the dominant and recessive alleles for flower position in peas. Two plants with the genotype PpAa are crossed. Which genotype is indicative of white axial flowers?
PpAa is indicative of white axial flowers.
PPAA is indicative of white axial flowers.
ppAa is indicative of white axial flowers.
Answer:
Option C, ppAa is indicative of white axial flowers.
Explanation:
It is given that Purple color (P) is dominant over white color (p). Thus in order to have a flower of white color , the flower must be homozygous recessive with an allele pair having two recessive alleles.
Similarly, Axial (A) is dominant over terminal (a) flower. Thus, a flower can be axial in two cases -
a) when both the alleles are same i.e AA
or
b) when one allele is A and the other one is a i.e Aa
Considering the above cases, all possible allele combination that will produce white axial flower are as follows -
ppAA, ppAa
Thus, option C is correct
Answer:
C
Explanation:
Which of the following is true of all minerals?
Made of many different elements
Come from the ground as crystals
Can be liquids, solids, and gases
Made of one or more elements from the periodic table
Answer:
Made of one or more elements from the periodic table
Explanation:
Minerals are natural occurring inorganic solid substance that have a definite crystal structure and definite chemical formula. The crystal structure in minerals are usually well organised. Mineral are made of one or more elements from the periodic table. Example of minerals formed from a single elements are carbon(graphite), gold and silver. Like for the gold which are called native elements rarely combines with other elements. The atoms, molecules and ions that formed the minerals are well structured in a geometric way.They are arranged in particular pattern. Minerals can also be formed from more than one elements example are the silicates minerals.
From the option A not all minerals are made from different elements but most metals are made from combination of different elements.
Not all minerals come from the ground as crystal some crystallize at the surface of the earth.
Minerals are not gaseous and liquid in nature. All minerals are solid in nature.
Minerals are made of one elements or more than one elements from the periodic table.
The picture above illustrate how mineral looks like.
Answer: Made of one or more elements from the periodic table
Explanation:
Take a rubber band, and stretch it between the thumb and index finger of one hand. Hold it there for as long as you can.
At what state is the energy in the rubber band?
As your hand gets tired, what state of energy is it fighting against?
Release the rubber band from your finger. At what state is the energy in the rubber band as it is released?
how do scientist develop scientific explanations about subjects that are impossible to study through controlled experiments?
____________ have helped us learn about animals that are now extinct.
Observations
Written records
Fossils
Rocks
Describe four real-life examples of the results of scientific investigations?
Answer:
From the beginning of the science, there are several scientific investigations that took place to propose a hypothesis and test these by scientific methods if these are true or not.
The some of the real life examples of the result of these scientific investigation are
Technology that helps humanity by several possibilities, helps in the transportation, medicine or health sector by developing drugs, and electricity that helped daily life of a human as vital resources.
In grafting, the plant with the root system is called the , and the portion of the plant with the buds is called the .
Answer:
In grafting, the plant with the root system is called the root stock , and the portion of the plant with the buds is called the scion
Explanation:
Grafting is a process of “vegetative mode of propagation “ in which two parts of same or two different species of plants are joined together to make them grow as a single plant. The part of the plant which is kept over and above the other plant is called the “scion” while the part of the other plant kept at the bottom is called a rootstock.
Thus, in grafting, the plant with the root system is kept at the bottom and hence it is called as root stock , and the portion of the plant with the buds is kept over and above the root stock and hence it is called as scion.
How does a radio wave differ from a gamma ray? Frequency only Wavelength only Both the wavelength and the frequency Their speeds
Ik its not biology its just the only thing i saw
Select all that apply. The Chordata phylum consists of _____.
tunicates
lampreys
stingrays
lancelets
trout
Name a unique trait about each planet in our solar system
Mercury: It is the closest planet to the sun, so it orbits the sun very quickly just in 88 days. Its surface is gray to orange in color and it is covered with craters. It is a small planet, just 4850 kilometers (~3000 miles) in diameter. The side of its surface which is facing the sun is extremely hot as 700oK.
2. Venus: Its surface is a brownish-yellow color because of its thick atmosphere which is composed of largely of sulfuric acid and CO2. Its size is a little over 12,000 kilometers (7300 miles) in diameter. It rotates the sun in 243.
3. Earth: It rotates the sun every 365 days (year) and rotates in its axis every 24 hours (day). Its size is a little more than 12,000 kilometers in diameter. This planet is different form other planets as it maintains life on its surface. It has a moon.
4. Mars: It takes 687 days to revolve around the sun. Its surface is covered with craters, volcanoes, and large canyons and it has a very cold atmosphere. It has two moons.
5. Jupiter: It is the largest planet of the solar system as a diameter of 142,980 kilometers. It orbits the sun every 12 years.
6. Saturn: It is a large planet as 120,536 kilometers. It orbits the sun in 12 years. It is well-known for its system of three rings, it has also 47 moons.
7. Uranus: It rotates the sun in 84 years, its size is 51,118 kilometers in diameter. It is surrounded by a system of nine rings.
8. Neptune: Its size is 49,500 kilometers in diameter. It orbits the sun every 165 years.
Tiny structures in the cell that carry out the cell's activities are
mitochondria
nucleus
organelles
cyotplasm
Why do scientists use significant digits?
Why is a squid considered a cephalopod
A(n)__________ is a long chain of amino acids.
in some places, granite rock extends as deep as:
I think is 50 kilometers
How do you get a scar from a pimple?