What part on a human has a membrane

An individual that is heterozygous for flower color and for height (PpTt) is test crossed. What is the phenotypic ratio of the o

MrRa [10]

Answer:

9:3:3:1

Explanation:

This type of crossing that involves two characters is referred to as dihybrid crossing. Generally, when there is a dihybrid crossing for heterozygous genes for both parents, the phenotypic ratio is usually 9:3:3:1 as shown in the figure in the attached document below.

Assuming the colour is White (P) and Black (p) and the

Height is Tall (T) and short (t)

The possible phenotypes will be in the ration

9 - White and Tall

3 - White and short

3 - Black and Tall

1 - Black and short

It should be noted that phenotypic ratio (phenotype) describes the outward appearance (what can be see physically) and not the genetic make-up. Thus, where there is a dominant character like P or T, the recessive characters are not considered to have been expressed.

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3 0

2 years ago

Which of the following is not due to water’s surface tension?

jonny [76]

The correct answer is option D, that is, ice floating on the water surface.

The cohesive forces among the molecules of a liquid are accountable for the process called surface tension. Surface tension refers to the tension of the surface film of a liquid resulting due to the attraction of the particles in the surface layer by the bulk of the liquid that seems to reduce the surface area.

The examples of surface tension are walking of small insects on water, floating of a needle, the surface tension of water offers the essential wall tension for the creation of bubbles with water, and surface tension is accountable for the shape of liquid droplets.

The low density of ice makes it float at the liquid water surface, like ice cubes in a glass of water, or an iceberg. The lower density of water in its solid form is because of the way hydrogen bonds are aligned as it freezes, the water molecules are pushed further far away in comparison to the liquid water.

4 0

3 years ago

Compare and contrast contour farming,terracing,strip cropping,and no till farming

FrozenT [24]

All 3 farming techniques are methods of soil conservation.

Contour plowing is used to stop water from flowing directly down slope to prevent gullying.

Terracing is used to slow the amount of runoff, and prevents rapid soil erosion.

Strip Cropping is when farmers plant plants in alternating bands to stop soil erosion.

8 0

3 years ago

HELP FAST IM GETTING TIMED BRAINLIEST

emmasim [6.3K]

Answer: Over the water moving toward the land

Explanation:

4 0

3 years ago

Read 2 more answers

Need it done as fast as you can it's do in 4 hours.

vagabundo [1.1K]

Answer no 1:

sW sW sw sw

Sw SsWw SsWw Ssww Ssww

sw ssWw ssWw ssww ssww

The genotype of the parents will be Ssww and ssWw.

About 4/16 offsrings will have the genotype SsWw, 4/16 will have the genotype Ssww. 4/16 will have the gentype ssWw. 4/16 will have the genotype ssww.

About 25% will have the phenotye, smooth and wooly. About 25% will have the phenotype smooth and non wooly. About 25% will have the phenotype non- smooth and wooly. About 25 % will have the phenotype non-smooth and non- wooly.

Answer No 2)

bT bT bT bT

Bt BbTt BbTt BbTt BbTt

The genotype of the parents will be BBtt and bbTT.

As seen in the punnet square, the phenotype of all the offsprings born from such a cross will be black trotter.

Answer No 3)

wd wd wd wd

WD WwDd WwDd WwDd WwDd

The genotype of the parents will be WWDD and wwdd.

The results of the punnet square illustrate that all of the offsprings will have white flower colour and disc shaped fruit.

Answer No 4)

The phenotypes of the rabbits will be as follows:

Ggbb - Gray hair and red eyes.

ggBB- White hair and black eyes

ggbb - White hair and red eyes.

GgBb - Gray hair and black eyes

Answer No 5)

Gb Gb Gb Gb

gB GgBb GgBb GgBb GgBb

gb Ggbb Ggbb Ggbb Ggbb

8 out of 16 offspring will have Gray fur and black eyes.

8 out of 16 will have gray fur and red eyes.

0 out of 16 will have white fur and black eyes.

0 out of 16 will have white fur and red eyes.

8 0

3 years ago