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hichkok12 [17]
3 years ago
14

In the bryophyte life cycle, the gametophyte generation consists of

Biology
1 answer:
Ede4ka [16]3 years ago
6 0
Leafy shoots. think about mosses you see every day, how do they look like
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How are the three chromosomal aberrations differend from each other?
Lorico [155]
The three chromosomal aberration: 

1.) Inversion - breakage of chromosome in two places , the other piece of DNA is re- inserted into the chromosome.
2.) Translocation - the one piece breaks off and attaches to another chromosome. 
3.) Deletion - the loss of segment of chromosome.

-ace
6 0
3 years ago
A maize plant with genotype Aa Bb produces the following gametes 100 Ab 45 AB 106 aB 50 ab This tells us that the two genes are
bogdanovich [222]

Answer:

True

Explanation:

The linkage relation of two genes can be determined on the basis of calculating recombination frequency.

If the recombination frequency value is greater than 50% then the genes are not linked and if the value is less than 50% then the genes are linked.

In the given question, the  crossover gametes formed will be Ab = 100

and aB= 106.

Therefore,

\dfrac{recombinant\ progenies}{ Total\ progeny}\times 100\\\\\dfrac{100 +106}{100+106+45+50}\times 100\\\\=\dfrac{206}{301}\times 100\\\\= 68.43\%

Since the recombinant frequency value is larger than 50% therefore the genes do not show linkage.

Thus, True is the correct answer.

7 0
3 years ago
What is the atom of the element boron?
Agata [3.3K]

The atomic number is 5. The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.  Boron number 5 has five protons and therefore as a neutral atom also has five electrons. Boron atomic number 5 has five electrons in its ground state.  Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.

3 0
2 years ago
Scientists have used genetic engineering to produce new types of grains and vegetables. These grains and vegetables can live in
Nadya [2.5K]

Answer:

I think its B but im not 100% sure

Explanation:

3 0
2 years ago
Lenny came face-to-face with a young bear while hiking in the sierra nevada mountains. his sensory input traveled to his cerebra
DaniilM [7]

The sensory input initiated from the spinal cord before reaching to the brain . The information firstly goes to first order neuron where it receives impulses from skin and then transferred to the spinal cord.

Some sensory pathways consists of chain of neuron that transfer from receptor organ then to cerebral cortex that is responsible the perception of sensations. Sensory input is converted into electrical signals are known as nerve impulse.

This nerve impulse are transmitted into into brain. The correct order is Receptors - Sensory neuron- Spinal cord - Motor neuron- Muscle.

Impulse are the strong desire to act or that causes something to happen or happen more quickly.

To learn more about impulse here

brainly.com/question/16980676

#SPJ4

7 0
1 year ago
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