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Why does DNA have a leading strand and a lagging strand during replication?___has to attach the new free-floating nucleotides to the _____ of the newly formed strand. The two strands of a DNA molecule are antiparallel, so in order for the lagging strand to be formed in the same direction, it has to be done in Okazaki fragments going in a ___3rd___ direction.

1st 2nd 3rd DNA polymerase 3' end 5' to 3'

1st 2nd 3rd DNA ligase 3' end 5' to 3'

1st 2nd 3rd DNA helicase 5' end 3' to 5'

1st 2nd 3rd DNA polymerase 5' end 3' to 5'

Posted 5 years ago by miyaomar in Biology 30 | 0 answers
#help #nucleotides #strands

Compare and contrast the natural formation of identical twins to the artificial embryo twinning process. Explain how the formation of identical twins or the process of artificial embryo twinning differs from the formation of fraternal twins.

Posted 5 years ago by miyaomar in Biology 30 | 0 answers
#twins #formation #artifical

1A(g)+3B(g)<->2C(g)

2.00 mil of A and B are placed in a 500ml container at equilibrium C was found to be 0.16mol/L has formed. Calculate the equilibrium constant for formation of C.

Posted 5 years ago by Chemboy in Chemistry 30 | 1 answers
#redox unit

Use of Power by Dictators

Dictators use the following four techniques to gain and maintain power:

indoctrination force and terror use of scapegoats propaganda

Create a slideshow to demonstrate how both Stalin and Hitler used these techniques.

Posted 5 years ago by Summer99 in Social Studies 30-2 | 1 answers
#hitler

Melanin is a skin pigmentation that absorbs and dissipates broadband UV rays. Since UV radiation causes DNA damage, melanin pigments protect the skin and reduce the risk of cancer. When skin is exposed to sunlight, melanin production is increased, causing the skin to tan. This demonstrates that

Select one:

the environment causes mutations that increase the chance of survival

. the environment causes mutations that have a large effect on the chance of survival

the environment causes mutations that have no effect on the chance of survival

the expression of some genes is influenced by the environment

A male and female have three children, all girls. The couple is expecting their fourth child. The probability their fourth child will be female is __i__, and the probability the couple will have four female children is __ii_. The row that indicates the correct probabilities is

Posted 5 years ago by miyaomar in Biology 30 | 0 answers
#dna #punnet #genes

Which of the following statements correctly describes the Law of Independent Assortment?

Select one:

Sometimes all alleles lack dominance, which leads to a blending of traits.

The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter.

A large Punnett square can be used to predict the outcome of a parental cross involving two traits.

Non-allelic genes do not affect each other if they are located on separate chromosomes.

Posted 5 years ago by miyaomar in Biology 30 | 0 answers
#punnet #law #alleles

In fruit flies, long wings (L) are dominant over short wings (l). LL, Ll, and ll represent

Select one:

Three genotypes

Three true breeding crosses

Three dominants

Three phenotypes

Posted 5 years ago by miyaomar in Biology 30 | 1 answers
#geno #phenotypes #dominate

The roan coat colour in shorthorn cattle is the result of codominance of the coat colour alleles. A roan shorthorn mated with a white shorthorn. What is the probability that the offspring will be white shorthorn? AnswerRecord the answer as a value between 0 and 1, with two significant digits.

In cattle, a polled or hornless trait (P) is dominant over a horned trait(p). A polled bull mated with three different cows, and the following calves were born in the spring. Cow Phenotype F1 Generation Phenotype Cow 1 - Horned Calf 1 - Horned Cow 2 - Polled Calf 2 - Horned Cow 3 - Polled Calf 3 - Polled Which of the following rows correctly identifies the genotypes of the cattle?

Select one:

Cow 2 - pp Calf 1 - Pp

Cow 1 - pp Bull - PP

Cow 3 - Pp Calf 3 - pp

Bull - Pp Calf 2 - pp

Posted 5 years ago by miyaomar in Biology 30 | 0 answers
#genetics #punnet #help

Which of the following statements describes Mendel’s Law of Segregation?

Select one:

A Bb individual will produce B and b alleles, while a bb individual will only produce a b allele.

The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter.

A Punnett square can be used to predict the outcome of a parental cross.