All categories

3 years ago

1. difference of microspore mother cell, microspore,pollen

Biology

1 answer:

Naily [24]3 years ago

5 0

Answer:

By the end of this section, you will have completed the following objectives:

Describe the two stages of a plant’s lifecycle

Compare and contrast male and female gametophytes and explain how they form in angiosperms

Describe the reproductive structures of a plant

Describe the components of a complete flower

Describe the development of microsporangium and megasporangium in gymnosperms

Explanation:

brainliest pls

You might be interested in

Earth has a feedback mechanism that works between the surface of the Earth and its atmosphere. Which of the statements is not co

Mumz [18]

The appropriate answer is doing. decreased atmospheric water vapor leads to an increased greenhouse effect. This is not true because water vapor is a green house gas and increasing the levels of it in the atmosphere will lead to more warming. All the other answers represent appropriate feedback mechanisms associated with global warming.

6 0

3 years ago

Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

7 0

3 years ago

Name two ways you can see a spectrum.

Tamiku [17]

The color spectrum from a rainbow.
The Electromagnetic spectrum from waves.

4 0

3 years ago

Gas giants have many more moons then terrestrial due to having higher____

Zigmanuir [339]

Answer: Gravity

Explanation: Gas giants are larger and there for have a stronger gravitational pull.
the larger planets with greater gravitational pulls collected more satellites and therefore have more moons.

8 0

3 years ago

Which statement describes natural selecion?

MatroZZZ [7]

Answer:

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

3 0

2 years ago