Why Do all the days of the year have the same amount of daylight?

Why do biologist use dissection light microscopes

JulijaS [17]

Biologist use dissecting light microscopes for dissection purposes like a magnifying glass, the magnification changer consists of optical lenses. The object planes of the left and right light paths are at a slight angle to each other.

4 0

3 years ago

A plant has the genotype AAbbCcDDEeff, where each letter represents a different gene. This plant is crossed with another whose g

scoundrel [369]

Answer:

The fraction of the offspring that will show the phenotype produced by the recessive c allele is 1024/4096 = 0.25 A-BbccDdE-Ff = 25%

Explanation:

You can calculate the fraction of the offspring that will show the phenotype produced by the recessive c allele by making the punnet square for each gene and then multipling the phenotypic proportions, like this:

Cross) AAbbCcDDEeff x AaBBCcddEEFF

Cross For each gene by separately:

Parental ) AA x Aa

Gametes) A A A a

F1) 2/4 AA

2/4 Aa

Parental ) bb x BB

Gametes) b b B b

F1) 4/4 Bb

Parental ) Cc x Cc

Gametes) C c C c

F1) 1/4 CC

2/4 Cc

1/4 cc

Parental ) DD x dd

Gametes) D D d d

F1) 4/4 Dd

Parental ) Ee x EE

Gametes) E e E E

F1) 2/4 Ee

2/4 EE

Parental ) ff x FF

Gametes) f f F F

F1) 4/4 Ff

So, fraction of the offspring that will show the phenotype produced by the recessive c allele is:

4/4 A- x 4/4 Bb x 1/4 cc x 4/4 Dd x 4/4 E- x 4/4 Ff =

1024/4096 = 0.25 A-BbccDdE-Ff =25%

6 0

3 years ago

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If the probability of an offspring is 50% homozygous dominant for black coat color and 50% heterozygous dominant for black coat

Molodets [167]

I believe it’s a 1:1 ratio

3 0

3 years ago

Read 2 more answers

Why is a house warmer on the top floor and colder in the basement

topjm [15]

Because warm air rises up so it's warmer on the top floor.

7 0

4 years ago

Read 2 more answers

tendons of the rotator cuff muscles hold the head of the humerus to the glenoid cavity of the scapula

AnnZ [28]

The rotator cuff muscles hold the head of the humerus to the glenoid cavity of the scapula with subscapularis, supraspinatus, infraspinatus, and teres minor muscles' tendinous.

What is rotator cuff muscles?

The rotator cuff is a collection of muscles in the shoulder that supports stability of the glenohumeral joint while allowing for a large range of motion. The following muscles make up the rotator cuff: Subscapularis. Infraspinatus. Minor Teres.

What is glenoid cavity of the scapula?

The term "glenoid fossa" refers to the glenoid hollow. The pectoral girdle's lateral scapula bone, often known as the shoulder blade, has a slight dip there. The glenohumeral joint connects the upper limb's humerus to the glenoid cavity.

The subscapularis, supraspinatus, infraspinatus, and teres minor muscles' tendinous insertions combine to form the tendinous band known as the rotator cuff. During joint motion, these muscles support the humeral head's rotation against the glenoid fossa.

Therefore, the rotator cuff muscles hold the head of the humerus to the glenoid cavity of the scapula with subscapularis, supraspinatus, infraspinatus, and teres minor muscles' tendinous.

Learn more about rotator cuff muscles from the given link.

brainly.com/question/9486780

#SPJ4

7 0

1 year ago