BIOLOGY HIGH SCHOOL

Define the laws of segregation and independent assortment. Explain how a Punnett square can illustrate both of these laws.?

Answers

Answer 1
Answer:

Gregor Mendel made two laws of hereditary. The First was the law of segregation and the second the law of independent assortment.

Law of segregation states that for a gamete, it receives one copy a gene in a random process and can be found in each gamete.

Independent assortment states that the alleles of two or more than two different genes get sorted into gametes, independent of each other.

  • A punnett square will therefore explain this with reference to a cross between two parents.
  • For example: AA x aa

AA is sorted independently and segregated to be passed to the gamete and the same for aa

A A x a a

A a

Learn more about the laws of hereditary: brainly.com/question/9182447

Answer 2
Answer:

Answer:

Law of segregation can be understand that when an individual makes a gamete, gamete receives one copy a gene in it which is completely random process and can be found in each gamete that later will form in the offspring.

Independent assortment states that the alleles of two or more than two different genes get assorted into gametes, totally independent to one another.

Punnett square is the diagram representation of the prediction of the genotypes of a particular breeding experiment. This predictions are used to the show on the basis of of both the laws stated above. In the punnett square the alleles of each gamete are segregated and represented outside of the box on right side and above the box.

The each inner box is get one copy of the alleles from both the side independently of one other.


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HIGH SCHOOL

What is the primary function of chloroplasts

Answers

Chloroplasts conduct photosynthesis.
or in simple terms, they make the plant's food.
The main role of chloroplasts is to conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water
MIDDLE SCHOOL

Cell-to-cell communication is absolutely essential for multicellular organisms. But how do plants communicate when their cells are surrounded by cell walls? Plants use __________ for long-distance signaling, such as ethylene which promotes fruit ripening and regulates growth. A) hormones B) ions C) neurons D) phospholipids

Answers

Ans.

Cell-to-cell communication allows signalling of essential substances between the plant cells, which are surrounded by cell walls. The molecules used by plants for long-distance signalling are known as hormones, such as auxin, ethylene, and gibberelin.

These hormones are secreted by one plant cell and received by another plant cell, where it exerts it affect. Thus, the correct answer to be fill in the blank is 'option A). hormones.'

Answer:

A. Hormones

Explanation:

Just took the quiz and got it right :)
HIGH SCHOOL

Salmonberry leaf cells contain 14 chromosomes. How many chromosomes will a new leaf cell contain after mitosis ?

Answers

The new leaf will contain 14 chromosomes, because during mitosis, a cell makes an exact copy of itself. Therefore, the number of the chromosomes in that cell stay the same.
The new leaf will contain 14 chromosomes as that of the parent cell
HIGH SCHOOL

Which of the following statements about eutrophication is NOT true? (A) It is caused by acid rain.
(B) It is caused by the addition of nutrients to a water system.
(C) It is most harmful when there is little flow through in the system.
(D) Phosphorus is the main causal agent.
(E) Humans are responsible for most eutrophication.

Answers

The correct option is A. Eutrophication is not caused by acid rain. Eutrophication occurs as a result of availability of nutrients which are neccessary for plant growth. These nutrients are typically released into water bodies as a result of human activities.
MIDDLE SCHOOL

Order the following from the stage of highest total population to the stage of lowest total population: Industrial, Pre-Industrial, Post-Industrial, Transitional

Answers

Answer:Post-industrial, industrial, transitional, pre-industrial

Explanation:

Answer:

industrial

post-industrial

pre-industrial

Transitional

Explanation:

HIGH SCHOOL

what type of tissue has cells that are tightly packed, sits on a basement membrane , is avascular, and is easily regenerated

Answers

Epithelial tissue
It is also widespread thought the body and covers organs. 
Epithelial tissue is tightly packed, sits on a basement membrane, is avascular, and is easily regenerated.  
HIGH SCHOOL

Which of the following is similar among all living organisms on Earth? social behavior, physical appearance, cellular function, all of these

Answers

Answer:cellular function

Explanation:

It is all of them. To be alive we all kind of have to have a face or body, we all need cells to help us with our day to day activities and we all need to communicate with other humans so that would be social behavior. 
HIGH SCHOOL

What reaction prevents more than one sperm from binding to an oocyte during fertilization?

Answers

The reaction is called ACROSOME REACTION. The acrosome reaction occurs during the sperm interaction with the egg before fertilization occur. The acrosome is a structure that is found on the head of the sperm, it contains a chemical called acrosin which the sperm used to penetrate the egg. Sperm which can not undergo acrosome reaction can not penetrate the egg for fertilization.
COLLEGE

If a person is heterozygous for an autosomal RFLP, and the fragment containing the RFLP is amplified by PCR, how many bands will appear on the gel after restirction enzyme digestion 3
impossible to tell
1
2
none

Answers

Answer:

Impossible to tell

Explanation:

The prediction of the number of bands that will appear after any type of PCR amplification procedure requires the crucial information like the primer sequences as well the as the amplicon sizes used for that particular PCR.

No matter what it is autosomal or hetrozygous , the basic information is always required.

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