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ale4655 [162]
2 years ago
9

Please help i don’t understand this question for my biology class

Biology
1 answer:
choli [55]2 years ago
4 0

Answer:

I believe it is receptors

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1. breeding of individuals that have genes for two different characteristics dihybrid cross 2. a grid system used to predict pos
icang [17]
1. breeding of individuals that have genes for two different characteristics:
DIHYBRID CROSS.
We call it a dihybrid cross when we are considering a cross between two different traits.
"di" means having two traits involved (for example, trait A and trait B), the "hybrid" means that each trait will have two different alleles (for gene A: A or a; for gene B: B or b), one is dominant and the other is recessive.

2. a grid system used to predict possible combinations of genes due to random fertilization: PUNNETT SQUARE
The Punnett square is a grid system that helps us predict an outcome of a cross or a breeding experiment. We this, we can determine the probability of an offspring having a particular genotype.
This is very useful when we are considering more than one gene,  making it less confusing.

3. a condition in which both alleles are dominant: CODOMINANCE
Tere are alleles that have the capacity of dominating at the same time, and when an organism is heterozygotic, both alleles are expressed.
For example, a white chicken(WW) crossed with a black chicken (BB):  100% of the offspring being WB. With this genotype, they have black feathers and white feathers. It's not a blend of colors, but a case where both are expressing.

4. when more than two alternatives exist for a gene: MULTIPLE ALLELES
Mendel thought that only two possible alternatives could exist for a gene, but there are cases that have more than 3 possibilities. Some of those can be really popular in a population while others not so much.
This happens with rabbit's fur. They can be black, brown, grayish,
Himalayan patterning or white fur.

 5.a condition in which neither pair of alleles is dominant or recessive, so the traits blend in the phenotype: INCOMPLETE DOMINANCE
Some alleles are not completely dominant, and when that's the case the phenotype of a heterozygous organism will be a mix between the phenotypes of its homozygous parents.
For example:
plant 1: RR -red
plant 2: rr-white
By crossing this plants we will obtain 100%  of the offspring with a color mix: pink.(genotype: Rr)
Red and white are not completely dominating so it results in a blend of colors.


3 0
3 years ago
I have no idea :) please help !
dsp73
Flowers and pollinating insects are examples of <span>coevolution. </span>
8 0
3 years ago
Read 2 more answers
During a routine clinic visit of a client who has myasthenia gravis, the nurse reinforces previous teaching about the disease an
torisob [31]
During routine  clinic  visit   the   client  should  state  the  following  information
1.  The  need  of   planing  activities  of  later  the  day
2.State  the  important  of  eating  meal  in a  semi-recumbent  position
3.Importance  of avoiding  people with respiratory  infection
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6 0
3 years ago
Which of the following events takes place during a single rotation of Earth?
NNADVOKAT [17]

Answer:

A

Explanation:

Answer is option one, or A

5 0
2 years ago
Macrophages express multiple types of receptors on their surface that stimulate phagocytosis of microbes, leading to pathogen in
Vinil7 [7]

Answer:

C. Mannose receptor

Explanation:

They are soluble receptors used by macrophages to aid phagocytosis. They are not associated with the phagocyte membrane and thus helps the macrophages to act on cells without getting in contact with the membrane

6 0
2 years ago
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