hubble test

DNA store genetic instructions for making___ in units called___

Proteins, Genes

Ribose is the sugar found in___ while deoxyribose is the sugar in___

RNA, DNA

In eukaryotic cells, DNA is found in the___

nucleus

DNA has___ strands of nucleotides, whereas RNA has___ strands of nucleotides

1, 2

Nucleotide strands are___ to each other

Complementary

Rosalyn Franklin's work with x-ray diffraction helped determine DNA shape as being___

Helical

The___ model of DNA was developed by James Watson and Francis crick

Double helix

DNA codes for the instructions for life in its sequence of___

Nitrogen bases

To copy DNA weak__ bonds are broken between___

Hydrogen, nitrogen base pairs

When DNA is replicated new nucleotides attached to the open ladder by___ rules

Nitrogen base pairing

According to Erwin chargaffs rule guanine bonds to__ and Adine bonds to___

Cytosine, thymine

What is the process of creating two identical molecules of the DNA using original nucleotide strands as templates for the new nucleotide strands?

DNA replication

What is the enzyme that unwinds in separates the two DNA strands of nucleotides?

DNA helicase

What is the enzyme that bonds new strands of nucleotides and the open DNA ladder?

DNA polymerase

What is the stringy form of DNA and as associated proteins called?

Duplicated chromosome

What are the proteins that help DNA coil into chromosomes?

Histones

In mitosis which cell divides to produce more body cells?

Parent cell

In mitosis which cell are created or produced?

Daughter cell

What are the proteins that help the DNA coil into chromosomes?

Histones

What are the two identical strands of DNA coiled up into chromosomes called?

Chromatin

If half of a DNA ladder reads TACCGA, then the other side of the DNA ladder will read...

ATGGCT

The two DNA molecules produced during DNA replication are identical - T or F?

True

DNA regression is necessary before cell division because each new cell needs their own copy of DNA to function - T or F?

True

DNA is replicated four times before cell division starts - T or F?

False

Humans have 46 chromosomes in each body cell - T or F?

True

When a body cell divides the daughter cells will have 23 chromosomes each - T or F?

True

Cancer is uncontrolled cell division in cells - T or F?

True

A tumor is the death of new cells producing a mass of cells - T or F?

False

The cell cycle begins and ends at the start of___

Interphase

A___ tumor has not spread while a___ tumor has spread throughout the body

Benign, malignant

During cytokinesis and plants a___ forms completing cell division.

Cell plate

___ has three phases - G1, S, and G2

Interphase

During___ DNA replication occurs forming sister chromatids

S-phase

Many cells of the body, such as nerve cells do not repeatedly go through the cell cycle rather these cells pause at___ which is where normal growth and maturation occurs in cells.

G1 or G0

In interphase DNA is in___ form and strands___ Individually visible using a microscope.

Chromatin, are not

Two identical strands of DNA forming the duplicated chromosome

Sister chromatids

Fibers that connect chromosomes to the centrioles aids in the division of sister chromatids

Spindle fibers

Anchors for the spindle fibers aids in the division of sister chromatids

Centromere

Location where the spindle attaches to the sister chromatid/duplicated chromosome

Centrioles

Sister chromatids come apart and move away to opposite sides of the cell

Anaphase

Chromatin coils into chromosomes and becomes visible, nuclear envelope dissolves

Prophase

Two new nuclei are visible as nuclear envelopes perform; chromosomes uncoil into chromatin

Telophase

Chromosomes are pulled in lined up in the middle of the cell by the spindle

Metaphase

___ is the final step of cell division. It physically separates the cells cytoplasm into two new cells. In animal cells, the two new cells pinch off from each other.

Cytokinesis